You're diagnostic tips are the best on youtube bar none. Especially for people who don't have access to the proper calibrated data and desired readings for certain sensors and things like that. And properly using scanner in general. Hell of a teacher man.
@@ScannerDanner You're welcome. No thankyou bro. My father has had a transmission shop for going on 30 years and I've worked there for nearly 8. He taught me everything I know but he's getting on up there in the years and just from a different generation yano? And I've been the r&r guy for that time.. So alot of the diagnosing and building I'm starting to have to take on myself. And being able to watch these and actually learn what this code means and that code with this code means this, and the little fine detailed tricks and tips you give for running electrical checks has helped me so much. I'd like to go to tech school but until I'm able to I'm burning these videos up. Lol. So i appreciate it for real brother.
@@thefogisgone3662 you have found the right place my friend, thank you again! Come check out my website too when you are ready for more www.scannerdanner.com
Paul, I wanted to thank you, again, for introducing me to the no current voltages that go away when a connector is plugged in on Fords, its priceless info. And all other scope videos that taught me to watch for grounds that jump to small voltage when they should not. Your students are coming out of school at a level above most guys I know who have worked for 20 years! G
WOW! Excellent explanation, excellent video. To the point---no redundancy. Outstanding! 2year problem code w/P0406 that NOONE could figure out---til now---with your help. Fixed my truck in 20 minutes with your help. THANK YOU
Let me commend you on starting out with an explanation on how the EGR susbsystem actually works. This knowledge is the key to quick diagnostics and repairs. Your whole test methodology (forcing the valve to open via the control solenoid and watching for RPM drop) is what has been used for many, many years without scan tools. Knowledge about this sensor would allow an experienced mechanic to jump to replacing it. Following up with repair confirmation is a great way to do a "quality" repair !
As a diy mechanic I never get much experience. The only way I can get experience is to watch yours videos, and I learn a lot it would take years of learning if I should only learn from working on cars. I try to watch others video to but I must say you are the best I also learn English as I am from Sweden. The best thing is you save me a lot of money I rather invest in ScannerDanner material then throwing money at the part changer mechanic and shops. My next goal is to buy pico or Tiepie.
That was a great explanation of how the EGR system works with the DPFE sensor using the diagram of all of the components. Thanks for doing that. Makes it clearer. I never knew the hose position mattered because in previous videos when you talked about checking for restricted exhaust, you said you could either hose. Thanks again for showing all of that.
another fantastic video, straight hard core testing, no page after page of nonsense, look forward to more videos , and I will be buying your e book thanks Paul, keep up the outstanding work!
i enjoy watching your videos on how to use snap on scanners. i recently purchase a ethos scanner last night at school, an im trying to get myself situated on how to use it properly. being able to see how easy it is to fully verify the problem an correcting it makes me feel like i could do it.(with more training of course) thank you
Very good information. Replaced a DPFE on a 2001 ford expedition last week. Had a p401 code on my snap on modus. went to code tips and checked the DPFE voltage and it was steady at 0.2 volts. Replaced sensor voltage at idle was 1.03 after repair. One tip on the f150 and expeditions with the 4.6 engine, the passages in the throttle body are bad about getting clogged from carbon buildup and have to be cleaned out alot of the time. So if you have a P401 on 4.6 engine suspect passages are clogged up
I had a 2001 Taurus that, for years, had HORRIBLE spark knock and a really bad misfire at part throttle cruise. Never threw a code. I spent a lot of money getting the computer reprogrammed, ran a cooler thermostat in it one summer and NUMEROUS other things. Could never get it figured out. One day it threw a code for insufficient EGR - after I replaced it, it fixed everything else. Crazy how they relate.
paul great video on E.G.R system performance. best ive ever seen brother.paul E.G.R systems are simple yet can be so complecated.once you understand the coalition between P.C.M,E,V,R,D.P.F.E AND THE NEW YET SAME E.G.R SYSTEM MODULE LIKE FORD EMMISSION SYSTEM LIKE YOU PROVED IN THIS VIDEO YOU CAN CUT THE FACTORY FLOW CHART IN LESS THAN HALF.87% IN MY EXPERIENCE HAVE BEEN A FAILED D.P.F.E SENSOR.THANKS PAUL GREAT VIDEO RICK BAUZA.
👍👍Had a 06 Freestar with the the ESM Egr style today. Sent video to all employees just now. Mine was not a hard code. 0.2 at idle. P0405 came on after deceleration. New BWD.( Broken when delivered ) .Put a O.E M. After reviewing your vid. Key on engine off dpef was 1.0 volts. 😉
New subscriber here from the Philippines, thank you so much for this great video tutorial, I learned a lot from this, hope to watch your videos related auto electrical and engine diagnosis. God bless teacher.
These EGR vids are fun to watch. Is it still possible to cover the EVR vent hole on these new ones ? Another great video Mr. Danner! I bet ericthecarguy wished he had your troubleshooting skill for his latest video.
Great vid Paul, serious, even as a master tech ...I can learn from you. Funny thing is, we don't have those dpfe sensors here in germany! EGR cooler and all those switches and flaps...what I was wondering....shouldn't it be possible to activate the vacuum switch via the scan tool, instead with the test light???
My P0405 code turned out to be the wire connector as the wires had became brittle and causing them to touch one another. This was on an 08 Explorer 4.0
1998 Pathfinder 3.3L, automatic, 164,000 miles, stock. Runs real good. So I'm having a recurring P1400 EGRC Solenoid Valve error come back after erasing codes. It reappears almost immediately after being erased. I don't have any operability issues. No other codes but one that came up after I started running the motor with the solenoid plug disconnected (for testing)...P0443 Evap Emission Purge Control Valve Circuit. But it stopped appearing after I reconnected the solenoid plug. I looked where the ECM is to access the EGRC Solenoid ground wire and crap is that a pain to get out! So I did these troubleshooting steps to test the Ground wire resistance and the Voltage at the plug wire instead. This is after I tested the valve clicks/opens with 12v injected from a jumper wire. The solenoid appears good, as far as activating manually. Ground Wire tests: left socket when looking at plug with lock button on top. ENGINE COLD -- Off cold: 500 ohms Key on cold: 1,200 ohms Cranked idle Cold: 3,600 ohms. ENGINE HOT -- 25 minute idle warm up and short drive, and RPM revs to 3,000. Off: 500 ohms. Key On: 1,200 ohms Cranked at 850-rpm idle: 1,600 ohms before revving, 3,400 ohms after revving 2,000 rpm. Cranked and held at 2,000 rpm (in Neutral) for 60 seconds: 1,850 ohms. ### VOLTAGE tests ### Power Wire: right socket. Using ground wire on solenoid plug (motor cold) -- Off: 0.01v Key On: 11.9v Cranked: 14.3v Using chassis ground frame bolt (motor hot) -- Off: 0.07v Key on: 12.4v Cranked: 13.7v - Battery terminal as ground had same results. If nobody knows I'm just gonna ignore it because I dont have emissions tests here and it shows no driveability issues either, so likley unimportant. But I kinda wanted to understand if my EGR is being left open to exhaust or closed, with the signal from the solenoid as-is. Anyone know by chance? Thanks!
Forget resistance testing. The problem with it is this: 1. When it tests bad, it's bad. 2. When it tests good, it can still be bad. You have a 2-wire EGR solenoid that is flagging a code immediately, even after clearing it. Is that correct? Step 1 Solenoid plugged in, with the key on, measure voltage on both wires (backprobing) and give me those readings.
After listening to your cautions on connecting 5 volt reference to signal wire and then the subsequent advisories to use a 5k resistor in series to do that, I was wondering. What if u used your test light to do that function. Your incandescent draws 200 miliamps at 12 volts, so probably less at 5. Or your other test light draws even less. So my question is. R there any signal circuits that would b harmed with the incandescent, and if so it would seem that the other test light (I forget the name of the diode type test l.e.d. It came to me) would always safely substitute for the 5 k resistor. And if so, wouldn't that be easier? Thank u!!!!
+Bill Rimmer My concern would be the resistance of the test light is greatly affected by the heat of the filament. A bulb that is not lit has very little resistance and 5v will not light one of these test lights. Does that make sense?
Yes it does. The cold filament would act basically as a jumper wire. The only idea I was trying to test was this one. In trying to verify the integrity of the signal wire when there is no bias voltage, with the sensor unplugged, I can c now that the IC test light is not the way to go. The scenario I was envisioning was, scanner on the circuit, sensor unplugged, led test light jumping between 5 volt ref and signal wire to observe rise to 5 volts on the scanner. The only reason I mention this is we always have scan tool and both test lights handy. We don't always have the 5 k resistor.
+Bill Rimmer You could unplug the ECT or IAT and use it's signal wire as your "protected" 5v ref for your integrity test on another sensor. If this makes sense to you, then major props to you my friend, you've been paying attention.
+ScannerDanner Premium hey I got 2000 ford mustang, got the p0401 flow code, with the koeo or koer im getting 5v all the time on the dpfe signal wire, while the sensor is connected or not, also I have good ground and good 5v ref. also took the evr cap off and when I put my finger on top car stalls out. any ideas
I know this is an old video but still you learn...i didnt know exhaust carbon only builds up at the intake end because of the gas cooling where it enters the intake...great stuff
Hey Paul awesome videos buddy. Scannerr Dannerr in da house. Hey Paul if a ecu has a o2 sensor monitoring (not supported) what can be done to fix this. Is it fixed in the ecu or is there a fault somewhere?
Because I've covered that material in other chapters. Chapter 3 for any solenoid, chapter 8 for psi sensors, chapter 2 for switch inputs, put all that together and you have what you need for any EGR system. Thanks!
Hey...you are a great teacher..I bought your book recently and love it...I have a 2006 ford Taurus with a p0401 code. I did the test you did..my dpfe didnt go to 4 volts while running but only rose from 1v to 1.3 and the engine did stall...so does this concludes my dpfe is faulty?
Thank you! Redo the test now at 1500-2000 RPM to prevent it from stalling and make sure the voltage on the DPFE rises to at least 4v . It is possible it rose higher than 1.3 during your test but the voltmeter wasn't fast enough to catch the peak voltage before the stall. If it stays low voltage, then make sure you have a good 5v ref and ground on the DPFE and also that the hoses going to the DPFE are not damaged before changing it
Thanks for this video !!! I have stiil HUGE problem with my Mustang 2004/ 3.8 litre! After replacing bigger fuelpump, 255 lph, and bigger throttle body 70mm, my idle has been "crazy", goes to 2500, after about 20-30 seconds lowers to 1100-1200, never goes below??? There is a big vacuumleak somewhere, I know, because my AC works, but air is going to face first, like it supposed to then suddenly goes to difroze, to window, even I don't touch anything?? I was told that is a sign for vacuum leak. My "check engine" codes are P0507= IA Control higher than expected, sure know that!!!, and P0405 Exhaust gas recirculation sensor a Circuit low??? I tested so far, like you teach here!!!!, if my DPFE works, it is fine, I replaced it year ago, bought a new one now, no change, will return it, no change!!! Replaced TBS, IAC sensor, and EGR valve, all good!!??? I did checked voltage to canister solenoid sensor, in rear, that seems to work fine, when applied 12 V, and blow for it, it did close!!! I did not replace that one, I sprayed all over under hood, all vacuumhoses, no leak?? I did take out canister purge valve, could not really test it??, opened it, cleaned it???, put it back??, can't really tell, if it works?? Could that be open all the time?? And make big leak in vacuum system, and make idle higher??? I will replace that next, after taking back new DPFE sensor, old one is fine??? So confused, driving a car, thanks god, it is manual, very hard to drive, and gasmileage terrible!!! Please help me, smoking test next??? Thanks=)
So I have a 03 4v Taurus low curcit code for dpfe vref. I unplug it I get a 5v reading, I command the egr with scanner and it stalls. Only time I can replicate is shifting to drive and accelerate vrep signal drops to .16 momentarily and returns to 1.9. Wiggle test didn't effect either... any suggestions? Our new dpfe sensor didn't do it
@@ScannerDanner well, I got P0406 code on my 2006 Ford freestar, I thing Is relater to EGR module. I Will like to get info to performe a test over such Valve in order to find out the root cause of the showing code. My check engine light Is on. Tks un Advance For any help... Best regards!!!
What if you have an intermittent low voltage code on a pressure sensor. I wasn’t able to get it to throw the code but checked wiring via multimeter and I everything looks good. I ended up replacing the sensor.
Hi SD I apologize, the one you printed out From Google image. The all in 1 dpfe,evr,evr. Do u have a video testing that one ore would it be the same it's just compacted all together?
I thought I did but cannot find it. It is similar in testing except if my memory is correct, the single exhaust tube used for the DPFE sensor is exposed to manifold vacuum instead of exhaust gases all the time. I guess they finally figured out why the sensors would all fail.
I have a p0401 so I did the t-pin on signal post for dpfe and it reads 1v at idle. I also did the ground for t pin on evr for it to actuate egr. The voltage reading goes down on the dpfe to .3 instead of going to 4v truck does stall. What could be wrong?
Yes sensor is new. I tested the old aswell after that fact that i had bought and it reads 1v aswell so both old and new dpfe are good. I also cleaned the intake passages and replaced with new egr since the old one was gummed up. So all i need is to reverse the hoses
@israelduartejr4517 that's what it is acting like for sure. Usually it's hard to mix them up as the hoses are slightly different diameter, but if they've been replaced before it can be difficult. The smaller tube on the DPFE sensor should be the upstream hose (closest to the EGR valve) I think 🤔
Thank you for your time to explain how this system works (exhaust gas recirculation EGR system). and I have question for you, do you accept $ donations?
I do not. Simply because I have a paid portion of my website where I'm offering in classroom training for my community and many of you support me there. We are however working on a non profit this year, to be able to help others more, but it is not set up yet. Keep a watch out for it okay? For now, just subscribe and click the bell icon to be notified of new uploads. We will be making an announcement here too. Thank you so much! Tell you friends, share etc and then also if you could leave some feedback on my website that'd be awesome! www.scannerdanner.com/leave-read-feedback-new/leave-feedback.html
My P0405 code went away after a good clean but now it's throwing the same code again and car is stalling and misfiring also shutting off while accelerating I Need Some Help been at it for 2 weeks (03 chevy malibu)
Hi I have Peugeot 308 1.6 hdi 2012, I have problem with egr valve code p0489, I changed dpf sensor, map sensor, butterfly system, clean dpf filter, also I clean egr with cooler, still management light up on dash board. Please kindly help me with your advice? Thank you
Post your questions to my forum www.scannerdanner.com it is free to join and we can help you there for sure. Also having access to some good service info is key (wiring diagrams etc). You will be expected to have access to one and have a voltmeter at a minimum for us to help you. eautorepair.adtrk.biz/?a=10817&c=24&p=r&s1=
what would you say of the code 0406 A circuit HIGH. i have it on a 3.0L 2007 ranger. have replaced the dpfe, repaired the blocked vacuum line to solenoid...
You always talk about the engineers and they should let us now about what is inside a module, I have Bentley manual for BMW 5 series and I can see what inside the module if the transistor is grounded or + feed. By the way you never work on German car's? I have Mercedes and BMW and they are not easy to backprobe molded connectors.
I have a 1999 Taurus with a p0401 code and when I give it a little gas it stays at 2000 rpms for a few seconds and it idles at 950 cant find vacuum leaks egr tested good holds vacuum and stalls after its warm and apply vacuum.Before I start putting parts into it any ideas....very nice videos by the way
Hello there, i have VW Passa TDI 2010, it smell fuel and did not heat up as it should be, also no eccelratin when its on P, but it drive ok! i took it to the grage and changed egr with new one, still the same, it cost me £420, any help Please Thanks
where is this sensor screwed to please,mine isn't screwed to anything,its just plugged in and the downstream and upstream hoses are holding it,is it screwed to the backside of the upper intake manifold,man,its a wicked pain to see back there,someone must have replaced this part at one time and probably lost the screws i'm thinking,i have an 04 taurus but its in the same location,please help,lol
thx you,thats a good idea,i'm prepared now for the next time i take it apart,have the diagram,a mirror,ordered the parts,hoses,dpfe sensor and all the hardware,what pain in the a@@,but ill get er done,it just needs to stop raining for an hour or so,lol,can't win here.
If it is this sensor I'm testing in this video, do what I showed. Step 1 is to get me voltage readings on all 3 wires of the DPFE sensor with the key on, sensor plugged in, backprobing
I have a Seat Ibiza 1.2 TDI E-ecomotive(2012/03) and get 'check engine' ...I get from OBDII P0405 not sure where to check or what to do, I'm good with my hands but I didn't find anyone who had the same issue and fix it, so I can do the same :(
I do not have time to do homework on what this code is or how to test it but we can certainly do that on my forum. It is free to join. www.scannerdanner.com/forum/post-your-repair-questions-here.html Hope to see you there. Thanks!
Yes the flow chart sucks. But you have to understand how the whole system works and ground side test, and so on. The flow chart is for those that do not have the understanding. But because you understand the system so good, and you showed the google pic of the system it makes sence. Which brings up a good point, All flow charts should have a pic with with elec, and vacume values on that picture, and then the flow chart. Hopefully the day will come when flowcharts are obsolte and instead the manufactures will supply a usb flashdrive with a videos from you, or someone like you on every TBC.for engine management and everything else. In fact with your paper book you should have a flashdrive included. I wonder if your e-book has click links? And of couse lastly as you keep saying you must understand your tools and have the money to but them. I have heard you say on ERic the car guy that the school owns most of the tools you use.... Lucky you...
+Yovanni Zuluaga My book is available on my website at www.scannerdanner.com With the purchase of my book, you qualify for a coupon good for a free month of SD Premium (limited to 41 countries right now) Thank you!
+Yovanni Zuluaga awesome, thank you! The coupons RUclips provides for me are for new subscribers only. Nothing I can do to change this myself. If you buy the book and still want the coupon, you'll need to cancel your subscription, then re-subscribe using the coupon.
I hate to be that guy... As a ford tech... The tube to the intake manifold (copper elbow) is definitely clogged with the carbon deposits. 100 % that car came back a few days later of not that same day. Every 3.0 that comes in with that i sell an intake reaeal and clean the tube brand new. Any one in the comments with this code. Dont throw solenoids or egr valves. Waste of money. The code sets because indeed the flow is low. Cant pull a vacuum on the valve to regulate flow. 👍
Of course intake passages do get restricted. I have videos on this too. But in this case that was NOT the case. If the intake passage was plugged, the idle would not have gotten very rough and almost stall when I forced the EGR valve to open. 100% this car did not comeback
@@ScannerDanner MY TAURUS had the po401 code,i replaced the dpfe sensor,that code went away and was replaced by po405 now,wth,i don't get it,maybe aftermarket dpfe or something else???,i did buy an egr vave just in case though,any ideas??,thx
@@fonzo2525 What is DPFE signal voltage 1. with just the key on _____ 2. engine running at idle ______ 3. when energizing the EVR solenoid (engine running at idle) ______ 4. does the engine stumble and almost stall when energizing the EVR solenoid while idling?______
@@ScannerDanner that's a good question,i haven't the means to test these components properly to pin point the exact problem,i just thought it was odd that the po 401 insuffient flow code went away and was replaced by po 405 EGR signal A circuit voltage low,in either case the car runs great with these issues,meaning it idles fine and runs fantastic as well...the only draw back is my gas milege took a hit in about 2-3 miles per gallon,i'm selling the car but would like to sort the issue before doing so,i've had these issues for over a year with no drivability issues whatsoever,i did buy an egr valve and gasket maybe ill replace that today,thx you for your help,these issues are such a headache,lol
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
The best/simplified description of this egr system/operation ever! I now fully understand the operation/theory of said system.
Thank you!
You're diagnostic tips are the best on youtube bar none. Especially for people who don't have access to the proper calibrated data and desired readings for certain sensors and things like that. And properly using scanner in general. Hell of a teacher man.
Thank you Seth! Really appreciate this type of comment.
@@ScannerDanner You're welcome. No thankyou bro. My father has had a transmission shop for going on 30 years and I've worked there for nearly 8. He taught me everything I know but he's getting on up there in the years and just from a different generation yano? And I've been the r&r guy for that time.. So alot of the diagnosing and building I'm starting to have to take on myself. And being able to watch these and actually learn what this code means and that code with this code means this, and the little fine detailed tricks and tips you give for running electrical checks has helped me so much. I'd like to go to tech school but until I'm able to I'm burning these videos up. Lol. So i appreciate it for real brother.
@@thefogisgone3662 you have found the right place my friend, thank you again! Come check out my website too when you are ready for more www.scannerdanner.com
Paul, I wanted to thank you, again, for introducing me to the no current voltages that go away when a connector is plugged in on Fords, its priceless info. And all other scope videos that taught me to watch for grounds that jump to small voltage when they should not. Your students are coming out of school at a level above most guys I know who have worked for 20 years! G
WOW! Excellent explanation, excellent video. To the point---no redundancy. Outstanding! 2year problem code w/P0406 that NOONE could figure out---til now---with your help. Fixed my truck in 20 minutes with your help. THANK YOU
Heck yeah! What was your issue?
Let me commend you on starting out with an explanation on how the EGR susbsystem actually works. This knowledge is the key to quick diagnostics and repairs.
Your whole test methodology (forcing the valve to open via the control solenoid and watching for RPM drop) is what has been used for many, many years without scan tools.
Knowledge about this sensor would allow an experienced mechanic to jump to replacing it.
Following up with repair confirmation is a great way to do a "quality" repair !
The guided information here is nothing short of amazing. It is very easy to tell you are a formal teacher Scanner Dannee
As a diy mechanic I never get much experience. The only way I can get experience is to watch yours videos, and I learn a lot it would take years of learning if I should only learn from working on cars. I try to watch others video to but I must say you are the best I also learn English as I am from Sweden. The best thing is you save me a lot of money I rather invest in ScannerDanner material then throwing money at the part changer mechanic and shops. My next goal is to buy pico or Tiepie.
That was a great explanation of how the EGR system works with the DPFE sensor using the diagram of all of the components. Thanks for doing that. Makes it clearer. I never knew the hose position mattered because in previous videos when you talked about checking for restricted exhaust, you said you could either hose. Thanks again for showing all of that.
thank you so much for your comment. i truly appreciate the positive feedback
I am not a English literature to explain my immersive feel. So I express in my best known words as awesome explanation about EGR system
another fantastic video, straight hard core testing, no page after page of nonsense, look forward to more videos , and I will be buying your e book thanks Paul, keep up the outstanding work!
:-) finishing another one now. I will have it up in a few days. I've been working on my lecture videos again. Hope to have Sections 13 and 14 up soon
Nice job Mr Danner once again
i enjoy watching your videos on how to use snap on scanners. i recently purchase a ethos scanner last night at school, an im trying to get myself situated on how to use it properly. being able to see how easy it is to fully verify the problem an correcting it makes me feel like i could do it.(with more training of course) thank you
Very good information. Replaced a DPFE on a 2001 ford expedition last week. Had a p401 code on my snap on modus. went to code tips and checked the DPFE voltage and it was steady at 0.2 volts. Replaced sensor voltage at idle was 1.03 after repair. One tip on the f150 and expeditions with the 4.6 engine, the passages in the throttle body are bad about getting clogged from carbon buildup and have to be cleaned out alot of the time. So if you have a P401 on 4.6 engine suspect passages are clogged up
I had a 2001 Taurus that, for years, had HORRIBLE spark knock and a really bad misfire at part throttle cruise. Never threw a code. I spent a lot of money getting the computer reprogrammed, ran a cooler thermostat in it one summer and NUMEROUS other things. Could never get it figured out. One day it threw a code for insufficient EGR - after I replaced it, it fixed everything else. Crazy how they relate.
paul great video on E.G.R system performance. best ive ever seen brother.paul E.G.R systems are simple yet can be so complecated.once you understand the coalition between P.C.M,E,V,R,D.P.F.E AND THE NEW YET SAME E.G.R SYSTEM MODULE LIKE FORD EMMISSION SYSTEM LIKE YOU PROVED IN THIS VIDEO YOU CAN CUT THE FACTORY FLOW CHART IN LESS THAN HALF.87% IN MY EXPERIENCE HAVE BEEN A FAILED D.P.F.E SENSOR.THANKS PAUL GREAT VIDEO RICK BAUZA.
You have turned me into a modern sensor engine test geek. This is good stuff.
👍👍Had a 06 Freestar with the the ESM Egr style today. Sent video to all employees just now. Mine was not a hard code. 0.2 at idle. P0405 came on after deceleration. New BWD.( Broken when delivered ) .Put a O.E
M. After reviewing your vid. Key on engine off dpef was 1.0 volts. 😉
It has been long days sir.Im waiting for your nice informative videos.l am very thankful to you.
thank you for posting this video. it saved me so much time.
i believe the biggest killer is exhaust moisture. of course heat too but I've had these that you can literally dump water out of them
You can do this bypass test with the EVR solenoid while monitoring IAC counters too.
Great video. Very informative and yet the information is easy to absorb, due of course, to the way you documented it.
Thank you.
New subscriber here from the Philippines, thank you so much for this great video tutorial, I learned a lot from this, hope to watch your videos related auto electrical and engine diagnosis. God bless teacher.
Welcome! Glad you found me
These EGR vids are fun to watch. Is it still possible to cover the EVR vent hole on these new ones ? Another great video Mr. Danner! I bet ericthecarguy wished he had your troubleshooting skill for his latest video.
Great information
I’m going to test my Taurus according to your steps
Will advise
Thank you
Great vid Paul, serious, even as a master tech ...I can learn from you. Funny thing is, we don't have those dpfe sensors here in germany! EGR cooler and all those switches and flaps...what I was wondering....shouldn't it be possible to activate the vacuum switch via the scan tool, instead with the test light???
Can you show how to test the p0401 on the Ford system where the egr and dpfe is built together. Example 2004 and newer engine 4.6
PAUL, YOU ARE THE MAN!!!!!!!!!
It a great and excellent explanation to the topic of egr sir scanner amazing
My P0405 code turned out to be the wire connector as the wires had became brittle and causing them to touch one another. This was on an 08 Explorer 4.0
when are you coming out with a hard copy of your book? Any discount on your paper version of your book for people that have already bought your ebook?
1998 Pathfinder 3.3L, automatic, 164,000 miles, stock. Runs real good.
So I'm having a recurring P1400 EGRC Solenoid Valve error come back after erasing codes. It reappears almost immediately after being erased. I don't have any operability issues. No other codes but one that came up after I started running the motor with the solenoid plug disconnected (for testing)...P0443 Evap Emission Purge Control Valve Circuit. But it stopped appearing after I reconnected the solenoid plug.
I looked where the ECM is to access the EGRC Solenoid ground wire and crap is that a pain to get out! So I did these troubleshooting steps to test the Ground wire resistance and the Voltage at the plug wire instead. This is after I tested the valve clicks/opens with 12v injected from a jumper wire. The solenoid appears good, as far as activating manually.
Ground Wire tests: left socket when looking at plug with lock button on top.
ENGINE COLD --
Off cold: 500 ohms
Key on cold: 1,200 ohms
Cranked idle Cold: 3,600 ohms.
ENGINE HOT --
25 minute idle warm up and short drive, and RPM revs to 3,000.
Off: 500 ohms.
Key On: 1,200 ohms
Cranked at 850-rpm idle: 1,600 ohms before revving, 3,400 ohms after revving 2,000 rpm.
Cranked and held at 2,000 rpm (in Neutral) for 60 seconds: 1,850 ohms.
### VOLTAGE tests ###
Power Wire: right socket.
Using ground wire on solenoid plug (motor cold) --
Off: 0.01v
Key On: 11.9v
Cranked: 14.3v
Using chassis ground frame bolt (motor hot) --
Off: 0.07v
Key on: 12.4v
Cranked: 13.7v
- Battery terminal as ground had same results.
If nobody knows I'm just gonna ignore it because I dont have emissions tests here and it shows no driveability issues either, so likley unimportant.
But I kinda wanted to understand if my EGR is being left open to exhaust or closed, with the signal from the solenoid as-is. Anyone know by chance?
Thanks!
Forget resistance testing. The problem with it is this:
1. When it tests bad, it's bad.
2. When it tests good, it can still be bad.
You have a 2-wire EGR solenoid that is flagging a code immediately, even after clearing it. Is that correct?
Step 1
Solenoid plugged in, with the key on, measure voltage on both wires (backprobing) and give me those readings.
I
Great video. How do I get your manual you referred too?
I have it available as an eBook or paper book on my website at www.scnnerdanner.com Thank you!
After listening to your cautions on connecting 5 volt reference to signal wire and then the subsequent advisories to use a 5k resistor in series to do that, I was wondering. What if u used your test light to do that function. Your incandescent draws 200 miliamps at 12 volts, so probably less at 5. Or your other test light draws even less. So my question is. R there any signal circuits that would b harmed with the incandescent, and if so it would seem that the other test light (I forget the name of the diode type test l.e.d. It came to me) would always safely substitute for the 5 k resistor. And if so, wouldn't that be easier? Thank u!!!!
+Bill Rimmer My concern would be the resistance of the test light is greatly affected by the heat of the filament. A bulb that is not lit has very little resistance and 5v will not light one of these test lights.
Does that make sense?
Yes it does. The cold filament would act basically as a jumper wire. The only idea I was trying to test was this one. In trying to verify the integrity of the signal wire when there is no bias voltage, with the sensor unplugged, I can c now that the IC test light is not the way to go. The scenario I was envisioning was, scanner on the circuit, sensor unplugged, led test light jumping between 5 volt ref and signal wire to observe rise to 5 volts on the scanner. The only reason I mention this is we always have scan tool and both test lights handy. We don't always have the 5 k resistor.
+Bill Rimmer You could unplug the ECT or IAT and use it's signal wire as your "protected" 5v ref for your integrity test on another sensor.
If this makes sense to you, then major props to you my friend, you've been paying attention.
+ScannerDanner Premium hey I got 2000 ford mustang, got the p0401 flow code, with the koeo or koer im getting 5v all the time on the dpfe signal wire, while the sensor is connected or not, also I have good ground and good 5v ref. also took the evr cap off and when I put my finger on top car stalls out. any ideas
+adrian gibialro bad DPFE sensor my friend. Nice job on your testing
I’ll try my best to fix the P0405 on my 06 e-150 Ford 😣 wish me luck thank you for information! 🙏🏻
Great video Paul I wish I could've had you as my Engine Performance instructor
I know this is an old video but still you learn...i didnt know exhaust carbon only builds up at the intake end because of the gas cooling where it enters the intake...great stuff
shauns auto repairs : it can mix with oil from pcv system too. Also why inlet side goes clogged.
Benjamin Rich thanks
Hey Paul awesome videos buddy. Scannerr Dannerr in da house. Hey Paul if a ecu has a o2 sensor monitoring (not supported) what can be done to fix this. Is it fixed in the ecu or is there a fault somewhere?
If the vehicle has a DPF fitted would the pressure be measured before and after the DPF rather than the Orifice?
nope, it is measuring before and after the orifice in the EGR tube (DPFE = delta pressure feedback sensor for the EGR valve)
do you have a video on the new egr valve
I cant find chapter 24 on the premium site??
Because I've covered that material in other chapters. Chapter 3 for any solenoid, chapter 8 for psi sensors, chapter 2 for switch inputs, put all that together and you have what you need for any EGR system. Thanks!
@@ScannerDanner gotcha 👌 thank you
Don't you blow your test light doing that? Maybe over time... forcing the egr solenoid current through the light?
Hey...you are a great teacher..I bought your book recently and love it...I have a 2006 ford Taurus with a p0401 code. I did the test you did..my dpfe didnt go to 4 volts while running but only rose from 1v to 1.3 and the engine did stall...so does this concludes my dpfe is faulty?
Thank you! Redo the test now at 1500-2000 RPM to prevent it from stalling and make sure the voltage on the DPFE rises to at least 4v .
It is possible it rose higher than 1.3 during your test but the voltmeter wasn't fast enough to catch the peak voltage before the stall. If it stays low voltage, then make sure you have a good 5v ref and ground on the DPFE and also that the hoses going to the DPFE are not damaged before changing it
Thanks for this video !!! I have stiil HUGE problem with my Mustang 2004/ 3.8 litre! After replacing bigger fuelpump, 255 lph, and bigger throttle body 70mm, my idle has been "crazy", goes to 2500, after about 20-30 seconds lowers to 1100-1200, never goes below??? There is a big vacuumleak somewhere, I know, because my AC works, but air is going to face first, like it supposed to then suddenly goes to difroze, to window, even I don't touch anything?? I was told that is a sign for vacuum leak. My "check engine" codes are P0507= IA Control higher than expected, sure know that!!!, and P0405 Exhaust gas recirculation sensor a Circuit low??? I tested so far, like you teach here!!!!, if my DPFE works, it is fine, I replaced it year ago, bought a new one now, no change, will return it, no change!!! Replaced TBS, IAC sensor, and EGR valve, all good!!??? I did checked voltage to canister solenoid sensor, in rear, that seems to work fine, when applied 12 V, and blow for it, it did close!!! I did not replace that one, I sprayed all over under hood, all vacuumhoses, no leak?? I did take out canister purge valve, could not really test it??, opened it, cleaned it???, put it back??, can't really tell, if it works?? Could that be open all the time?? And make big leak in vacuum system, and make idle higher??? I will replace that next, after taking back new DPFE sensor, old one is fine??? So confused, driving a car, thanks god, it is manual, very hard to drive, and gasmileage terrible!!! Please help me, smoking test next??? Thanks=)
Thanks for the great info Paul.
So I have a 03 4v Taurus low curcit code for dpfe vref. I unplug it I get a 5v reading, I command the egr with scanner and it stalls. Only time I can replicate is shifting to drive and accelerate vrep signal drops to .16 momentarily and returns to 1.9. Wiggle test didn't effect either... any suggestions? Our new dpfe sensor didn't do it
your 5v ref drops to .16? This is your problem! The wiring is touching ground somewhere in your harness
Where can the regular joe find the hh pinpoint test to go by?
I have a 2010 throwing this code
eautorepair.adtrk.biz/?a=10817&c=24&p=r&s1=
Hi there, thanks for share... question, How can I get the pinpoint test HH that is what I need? Tks
eautorepair.adtrk.biz/?a=10817&c=24&p=r&s1=
Here is a link for service info.
Or I can help. What test are you trying to do?
@@ScannerDanner well, I got P0406 code on my 2006 Ford freestar, I thing Is relater to EGR module. I Will like to get info to performe a test over such Valve in order to find out the root cause of the showing code. My check engine light Is on. Tks un Advance For any help... Best regards!!!
What if you have an intermittent low voltage code on a pressure sensor. I wasn’t able to get it to throw the code but checked wiring via multimeter and I everything looks good. I ended up replacing the sensor.
I think that is a good bet, based on the high failure rate of this sensor
Will this faulty DPFE sensor effect gas mileage?
Do u have a video testing the HH design?
the HH design?
Hi SD I apologize, the one you printed out From Google image. The all in 1 dpfe,evr,evr. Do u have a video testing that one ore would it be the same it's just compacted all together?
I thought I did but cannot find it. It is similar in testing except if my memory is correct, the single exhaust tube used for the DPFE sensor is exposed to manifold vacuum instead of exhaust gases all the time. I guess they finally figured out why the sensors would all fail.
I have a p0401 so I did the t-pin on signal post for dpfe and it reads 1v at idle. I also did the ground for t pin on evr for it to actuate egr. The voltage reading goes down on the dpfe to .3 instead of going to 4v truck does stall. What could be wrong?
Reversed hoses on the DPFE sensor would do that. Is the sensor new?
Yes sensor is new. I tested the old aswell after that fact that i had bought and it reads 1v aswell so both old and new dpfe are good. I also cleaned the intake passages and replaced with new egr since the old one was gummed up. So all i need is to reverse the hoses
@israelduartejr4517 that's what it is acting like for sure. Usually it's hard to mix them up as the hoses are slightly different diameter, but if they've been replaced before it can be difficult. The smaller tube on the DPFE sensor should be the upstream hose (closest to the EGR valve) I think 🤔
Thank you for your time to explain how this system works (exhaust gas recirculation EGR system). and I have question for you, do you accept $ donations?
I do not. Simply because I have a paid portion of my website where I'm offering in classroom training for my community and many of you support me there. We are however working on a non profit this year, to be able to help others more, but it is not set up yet. Keep a watch out for it okay? For now, just subscribe and click the bell icon to be notified of new uploads. We will be making an announcement here too.
Thank you so much! Tell you friends, share etc and then also if you could leave some feedback on my website that'd be awesome! www.scannerdanner.com/leave-read-feedback-new/leave-feedback.html
Okay thanks for answer me back.
My P0405 code went away after a good clean but now it's throwing the same code again and car is stalling and misfiring also shutting off while accelerating I Need Some Help been at it for 2 weeks (03 chevy malibu)
Hi
I have Peugeot 308 1.6 hdi 2012, I have problem with egr valve code p0489, I changed dpf sensor, map sensor, butterfly system, clean dpf filter, also I clean egr with cooler, still management light up on dash board.
Please kindly help me with your advice?
Thank you
Post your questions to my forum www.scannerdanner.com it is free to join and we can help you there for sure. Also having access to some good service info is key (wiring diagrams etc). You will be expected to have access to one and have a voltmeter at a minimum for us to help you.
eautorepair.adtrk.biz/?a=10817&c=24&p=r&s1=
what would you say of the code 0406 A circuit HIGH. i have it on a 3.0L 2007 ranger. have replaced the dpfe, repaired the blocked vacuum line to solenoid...
Thank you! Will do.
I have paper versions of the eBook and I do offer a discount to eBook owners. Email me.
You always talk about the engineers and they should let us now about what is inside a module, I have Bentley manual for BMW 5 series and I can see what inside the module if the transistor is grounded or + feed. By the way you never work on German car's? I have Mercedes and BMW and they are not easy to backprobe molded connectors.
I have a 1999 Taurus with a p0401 code and when I give it a little gas it stays at 2000 rpms for a few seconds and it idles at 950 cant find vacuum leaks egr tested good holds vacuum and stalls after its warm and apply vacuum.Before I start putting parts into it any ideas....very nice videos by the way
I did this test and I had no change in the idle. Any suggestions? I have a 08 f150 4.6
Plugged EGR passages would be suspect. Manually open the EGR (hand vacuum pump) and see what it does to confirm
Ice T says Game over but not if you have the scanner
HOW TO FIX THIS CODE P0243
eautorepair.adtrk.biz/?a=10817&c=24&p=r&s1=
Muy buen diagnostico gracias.
Hello there, i have VW Passa TDI 2010, it smell fuel and did not heat up as it should be, also no eccelratin when its on P, but it drive ok! i took it to the grage and changed egr with new one, still the same, it cost me £420, any help Please Thanks
at 13:21 you state that people have the hoes vice versa. how can you tell that? how do I know if its correct? thanks for your time.
Two different size tubes on the exhaust side and sensor side
where is this sensor screwed to please,mine isn't screwed to anything,its just plugged in and the downstream and upstream hoses are holding it,is it screwed to the backside of the upper intake manifold,man,its a wicked pain to see back there,someone must have replaced this part at one time and probably lost the screws i'm thinking,i have an 04 taurus but its in the same location,please help,lol
most likely lost the screws as you said. Get yourself an inspection mirror. Here is a link for an inexpensive one from Amazon
amzn.to/2u2ClDo
thx you,thats a good idea,i'm prepared now for the next time i take it apart,have the diagram,a mirror,ordered the parts,hoses,dpfe sensor and all the hardware,what pain in the a@@,but ill get er done,it just needs to stop raining for an hour or so,lol,can't win here.
im my lincoln ls 2000 v8 3.9 have a code but say egr high voltage ,why??
Check for good ground and see if its not unplugged what codes number qas it.
Very good 👍 explain
thanks man! email me through my website and I will send you some more info about the eBook.
How l can get you ebook
It is available at www.scannerdanner.com
Thanks!
Ok
How to fix egr sensor a circuit low? Any one guide me?
If it is this sensor I'm testing in this video, do what I showed.
Step 1 is to get me voltage readings on all 3 wires of the DPFE sensor with the key on, sensor plugged in, backprobing
I have a Seat Ibiza 1.2 TDI E-ecomotive(2012/03) and get 'check engine' ...I get from OBDII P0405 not sure where to check or what to do, I'm good with my hands but I didn't find anyone who had the same issue and fix it, so I can do the same :(
I do not have time to do homework on what this code is or how to test it but we can certainly do that on my forum. It is free to join. www.scannerdanner.com/forum/post-your-repair-questions-here.html
Hope to see you there. Thanks!
I have the same model of car and the same problem. Did you get it fixed?
thanks paul
Thank you!
Yes the flow chart sucks. But you have to understand how the whole system works and ground side test, and so on. The flow chart is for those that do not have the understanding. But because you understand the system so good, and you showed the google pic of the system it makes sence. Which brings up a good point, All flow charts should have a pic with with elec, and vacume values on that picture, and then the flow chart. Hopefully the day will come when flowcharts are obsolte and instead the manufactures will supply a usb flashdrive with a videos from you, or someone like you on every TBC.for engine management and everything else. In fact with your paper book you should have a flashdrive included. I wonder if your e-book has click links? And of couse lastly as you keep saying you must understand your tools and have the money to but them. I have heard you say on ERic the car guy that the school owns most of the tools you use.... Lucky you...
nice one
I like to buy you book. where can I get coupon. ?
+Yovanni Zuluaga My book is available on my website at www.scannerdanner.com
With the purchase of my book, you qualify for a coupon good for a free month of SD Premium (limited to 41 countries right now)
Thank you!
I already have the premiun
+Yovanni Zuluaga awesome, thank you! The coupons RUclips provides for me are for new subscribers only. Nothing I can do to change this myself.
If you buy the book and still want the coupon, you'll need to cancel your subscription, then re-subscribe using the coupon.
❤❤❤❤❤❤
or steps I should say
But I love ScannerDanner.................Yipeeeeeeeeeeeeeee
I hate EGR
I hate to be that guy... As a ford tech... The tube to the intake manifold (copper elbow) is definitely clogged with the carbon deposits. 100 % that car came back a few days later of not that same day. Every 3.0 that comes in with that i sell an intake reaeal and clean the tube brand new. Any one in the comments with this code. Dont throw solenoids or egr valves. Waste of money. The code sets because indeed the flow is low. Cant pull a vacuum on the valve to regulate flow. 👍
Of course intake passages do get restricted. I have videos on this too. But in this case that was NOT the case. If the intake passage was plugged, the idle would not have gotten very rough and almost stall when I forced the EGR valve to open.
100% this car did not comeback
K
Eres lo mejor 😜😜
He shouldn't be dogging Ford's all the time!
I dog all cars. I own a Ford so I don't really hate them.
@@ScannerDanner MY TAURUS had the po401 code,i replaced the dpfe sensor,that code went away and was replaced by po405 now,wth,i don't get it,maybe aftermarket dpfe or something else???,i did buy an egr vave just in case though,any ideas??,thx
@@fonzo2525 What is DPFE signal voltage
1. with just the key on _____
2. engine running at idle ______
3. when energizing the EVR solenoid (engine running at idle) ______
4. does the engine stumble and almost stall when energizing the EVR solenoid while idling?______
@@ScannerDanner that's a good question,i haven't the means to test these components properly to pin point the exact problem,i just thought it was odd that the po 401 insuffient flow code went away and was replaced by po 405 EGR signal A circuit voltage low,in either case the car runs great with these issues,meaning it idles fine and runs fantastic as well...the only draw back is my gas milege took a hit in about 2-3 miles per gallon,i'm selling the car but would like to sort the issue before doing so,i've had these issues for over a year with no drivability issues whatsoever,i did buy an egr valve and gasket maybe ill replace that today,thx you for your help,these issues are such a headache,lol
Return the EGR valve, that's not your problem with the p0405 code.
Make sure you didn't reverse the hoses on the dpfe sensor
ok tanks