Detroit DD13/15/16 - SCR NOx Conversion Eff. Low
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- Опубликовано: 15 май 2017
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Is your Detroit Heavy Duty DD engine having NOx conversion problems? Specifically SPN4364 FMI18? Here's some great service information straight from Detroit/DTNA on how to track down and fix these problems. 
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DEF is biggest scam in trucking industry
Absolutely. It’s all about dollars. They say it’s for environment, but every week we throw away millions of cardboard boxes and empty plastic jugs from def and think of all the manufacturing and shipping pollution also. It’s a joke
Facts! They will continue to do so until we put a stop to these legal plunderers.
The railroad burns more diesel fuel than the entire trucking industry, each freight train engine holds a 5000 gal fuel tank............ The railroad is exempt from emission testing entirely.......... Thanks for that you California people
Emission is great for mechanics can’t Booz enough hours fixing broken wires 😂😂🤣
Thank you. This will help me trouble shoot NOx issues way more better. I wish my job had better training than me jumping on the internet to TRY AND FIX issues.
I’m starting to get to know this systems and I feel like I know less now 😔
Excellent video! Much needed information!
NOTE! The awning is only for GHG14 or GHG17 systems. EPA10 which are normally for late 2009 to early 2013 have the air dosing system. And have the injector nozzle intead.
Most informative useful info for diagnostic
Shoutout from TAT Express out of Hutchins, TX
Excellent explanation!!!
Ohhhh boy do i love my 1996 3406e Cat😙
the planet dont
@@simonrobert5877 he don't love that $#!+
Congrat for the video! 🤗
The solution to this mess for all O.O. is to buy a new truck and let the warranty pay for it. Once warranty is over resale the truck and keep buying new with option to sale. Or lease. Then they'll have a shitload of raggedy trucks sitting on for sale truck lots with noone to buy. No need to keep wasting money on a system that carries this many issues. Last but not least they create the problem and have no solution but truckers pay for it. Cut out the game. Railroad industry is owned by government so they won't bill the government for faulty systems created by the government. It's all a game to stick it to the little man. Big business doesn't have this problem because they max out the warranty then sale. Don't buy a truck without warranty. Don't buy a truck with high mileage. Then you'll see millions of trucks sitting on truck lots and salesmen salivating to get that garbage sold.
Then the epa will come up with a better solution and stop scamming small businesses. Then they'll come with another money making solution and truck drivers will eventually quit, protest, or find a way to override the garbage. Freightliner can't even fix the problem with their trucks. They always scream it's the one box. Notice this part costs $14000 to replace. They only want to change the one box. It's like their trained to say it's the one box everywhere you go.
Thanks for the inf
following these steps, and using the "advanced troubleshooting" option in Diagnostic Link, I am to the part for the Low Temp ATD test with the doser electronically unplugged. Throughout this test, my Inlet NOx sensor stayed between 185ppm and 205ppm. My outlet NOx sensor drifted. Starting from 155ppm to 160ppm half way through. Then it dropped to 10 (ten) and slowly came back up to within 50ppm of the inlet sensor. Would it be a better bet to replace the outlet NOx sensor first?
Where can I find more videos from this person talking about the d.p.f.codes. I looked on the internet but can't find him
Could you do a video on SCR Closed Loop Control at Maximum Limit SPN 520372 FMI 16.
My scr inlet cools down much faster than the outlet in the last 7 minutes of the regen. Does this mean the one box is bad for sure?
Thanks
hello i hav an spn 521025 fmi31 i changed the nox sensor in downstram but it s the same problem i erased the alarm but nothing i m using agco power engine thank you
Also always watch Def pressure during scr efficiency overview. A DEF pump intermittently kicking out should always be looked at before replacement of the one box. Def pressure and amount dosed needs to be monitored when doing an overview.
What should the psi be? Mine is at 51 psi def pressure
@@TheFaze732 on Detroit Diesel the normal psi readings I’ve seen constant is 135-145 PSI. If you are getting 51 psi, it should throw a low pressure DEF detected fault.
What is pump pump rpm at 140 psi ? At warm engine or cold? Thank u guys
@@alexbaranya5432 using diagnostic link. Perform ADS SCR self check. If it passes, you’ll see def pump readings.
What diagnostic to buy?
I bought otr diagnoatics to clear codes
If u guys can tell me what to buy how much
I need to learn to read diagnostics to keep my truck system updated
I'm in the shop for my one box
Very interesting
what a money scam dealing with this garbage now $9600 for a metal box sorry EPA that's not going to happen
hey, im having trouble fixing a Detroit truck 60 having to do with 3509- 3 multiplexer 1 channel 1, please help, thanks
What a frickin' nightmare. My company is working on streamlining and simplifying all this to some degree.
I hate this system, all it does take our money,
What if the producer and distributor of fuel are to blame? My DD15 OneBox shows this code for two years, it shows up and disappears without any major consequences for the engine operation. However, in my opinion this is related to the quality of diesel (biodiesel blend). Detroit recommends using bio blends up to 5% without damaging the engine. Today, producers and distributors sell 5-20% biodiesel, without the possibility of verification from the consumer. It is impossible to buy a clean diesel without bio admixture in truckstop wide distribution. Does TheDieseler also think that diesel can cause the code that keeps coming back?
I'm not sure what effect high amounts of bio diesel would have on the scr system but I have heard of problems occurring at the engine level from it (Filtration and injector problems, etc). I'm sure it could be a possibility though.
Repeated, short occurrences of this code can sometimes be caused by DEF buildup in the system. An "awning" may help with this.
Yes, I installed "awning" a year ago, after that, new sensors and filters. I have also buying DEF only the best in market, in jug not in pump. But nothing help, only suggestion I have from technicians is to buy new OneBox ..... +/- $10K :)
Unfortunately, the SCR Cats can fail. I've heard of companies cutting open the 1Box and replacing just the Cats but that's about all I've heard. Not sure if it's successful or even still being done.
Delete, delete, delete...... this is garbage. If they want us to run this crap, they should warranty it for life. Instead of bankrupting owners.
As soon as your truck is out of warranty, do the SCR bypass and change your DEF filters every two or three years. Now worries after that.
What u talking about scr bypass
Would it be a good idea just to put the screen..? And if there's too much DEF, Does that mean the injector is injecting too much And needs to be replaced?
"Would it be a good idea just to put the screen..?"
If you're not seeing an issue with the system, but had the 1Box opened up anyway (Ex: For filter Maintenance), then yes, I would say installing it would be a good idea.
"if there's too much DEF, Does that mean the injector is injecting too much"
Not necessarily. The system can be doing everything correct but sometimes the duty cycle that the engine is running combines with weather and other factors can still cause DEF build up.
I got this code the other day , I was hauling about 43k going up hill and this code popped up, I did a force regen and cleared the code , then I drove like 5 miles and it came back on this crap worries me I don't want to derate to m5 mph .
Have code 4364 ran regen and notice that inlet nox and outlet nox are almost same valve. Change Def dosing valve and gasket
DID IT FIX THE issue
?
I have it now thanks
What about 4364 17 code?
Sir 3583 fault coads
I get bad def quality, Scr efficiency low, then derates to 55 mph this scenario only happens when I am pulling up a hill with a load. I replaced def doser, all wiring harnesses for the after treatment, sensors. I had freightliner check for bad one box and they said it’s fine. Any ideas what else could cause this? I also get a low def pressure code sometimes. So frustrating. Any tips would be greatly appreciated. 2014 freightliner Cascadia.
This is sort of sounding like DEF buildup in the 1Box. Has the truck had an awning installed? (I have another video covering those).
What u do to fix the problem?
Where are u located?
Where it’s the 8 pin dosing connector
Buy new outlet Nox sensor plug it in and zip tie it to the frame. Nox conversion efficiency 100 percent 👌
The advance diag for this code isn't accurate. most times it wont lead you to a failed one box. The low temp regen and high temp regen doesn't do a complete regen using advance diag. So when you compare the Numbers using the chart, it could be misleading due to the fact the regen didn't go through the full cycle. Use psl and *know the temps and pmm* which was .mentioned in the vid.
Phil Scar . If you don't mind, can you explain the PSL, and PMM? Can i find those test in the diagnosticlink 8.?
drone1028 PSL stands for power service literature PPM stands for parts per million.
They aren't test. When you do a regen or a low temp regen as part of a diag step, you need to know what the temps and nox (ppm) should range at. If you don't know the numbers, it is useless.
Let me explain in trucking terms what this video means. Your trucks down for who knows how long. You better have a boat load of money to try and keep this crap working. You need to have nerves of steel to put up with trucks check engine light always coming on and wanting to regen. If your a owner operator this system will most likely be the nail in the coffin of your trucking business. If your serious about trying to make living in trucking business buy the oldest truck you can find pre egr and pre def. The reason these new trucks with their def systems are so good for the atmosphere is because most of them spend more time at repair shop with engine off in parking lot than they do moving freight. That’s the way I see it.
I agree this is a scam thrown onto the OO. The thing stops working for many reasons, forcing you to take it to the shop. Extremely poor purchase fora small company. Stay away as someone else has said.
Higher PPM on outlet than the Inlet nox sensor ? What could be the problem?
Run a low temp atd to verify for sure that the nox sensors stay within 32 ppm of one another. If you aren’t looking at the last 10 minutes of a regen you won’t get accurate nox sensor readings until then. The inlet sensor doesn’t begin reading until after the last 10 minutes
I have a problem with going uphill every time I do it it gives me the check engine light and the fault code I’ve changed both my filters but i still get it what do i do
Change Def Metering Unit Inlet Screen, around $426
what amount of time should it take to get the 108-132ml of D.E.F.
The rest will run for a preset amount of time. Usually 2 or 3 minutes. When the Doser stops spraying, take the measurement.
I am doing the test with a PRO LINK it runs for 4 minutes.i didn't know if it was the same amount as Detroit software.
4 minutes sounds right. The test is most likely built into the ACM software and whichever tool you use is just asking it to activate.
👍🔥👍
I keep asking this question and to date not a single mechanic has even responded. What is the difference in:
Passive regen
Parked regen
Forced regen
When one won’t work the next level may… so what is happening that’s different?
A passive Regen occurs over the road when natural engine/exhaust conditions are correct to burn off Soot. This happens in the background without any warning lights, etc
An Active Regen occurs over the road when exhaust temps are not naturally hot enough to burn off Soot but Soot build up in the DPF is high enough that a Regen is needed. Raw fuel is injected into the exhaust to start the reaction and raise temps. This happens in the background without any warning lights, etc.
A forced or parked Regen is exactly what it sounds like. Normal operation and duty cycle (Or a problem in the system) has not allowed normal Regens to occur and the operator begins to be warned that a parked Regen will soon be required if conditions for an active or passive Regen are not soon met. Once the warnings progress far enough, Active Regens are disabled and power and speed derates prevent passive. Parked is the only option. If soot loads get too high, parked Regens will also abort.
But what is happening that is different ? Why is a forced regen able to clear a problem that passive or parked regen won’t?
I cant find any info on what to do if the scr efficiency test won't run.
You need to complete Regen first followed by SCR test in order for SCR test to start .
@@909damien1 thanks yea I found the regen activation in the dash menus.
Like
Deaf is offensive. It’s Hearing Impaired now.
Hello. I have a few questions: When running the low temp regen and the nox sensors are not within 50 ppm of one another, the PSL states to replace the outlet nox sensor first. Why is it recommended to replace the outlet nox sensor first? Is there documentation supporting changing the nox sensor that is indicating drift i.e., if the inlet nox sensor is indicating drift, change it first as opposed to the outlet nox sensor)? If the inlet nox sensor is replaced first instead of the outlet nox sendor, can that mask a faulty outlet nox sensor? Can it bring the nox sensors to within 50 ppm of one another even though the outlet nox sensor is faulty, and leading the trouble shooting process to a replacement of the one box? Is there documentation that supports replacement of the one box without first replacement of the nox sensors in the order indicated in the PSL (outlet nox sensor first, then inlet nox sensor)? Finally, can a faulty nox sensor (inlet and/or outlet) cause progressive damage to the one box? Thank you.
Personally, I've seen a lot more Outlet sensors fail over the years so I think that may be why they lead you in that direction. But, I always watch their readings. If the inlet is obviously drifted, I will replace it first.
I don't believe faulty NOX sensors will damage the 1Box but I have seen them contribute to DEF buildup inside of it.
Thank you very much for responding. So the sequence of events proceeded as follows: The shop replaced the inlet nox sensor first. Then the one box was replaced. Then the outlet nox sensor was showing to be unstable and was replaced (tech claims that the outlet nox sensor was damaged in removing it from the old one box, causing it to malfunction). The cause of failure step was not performed. I want to know your opinion as to whether this was a proper diagnosis of a one box failure (SCR inlet and outlet temps tested to be within 20 degrees of one another). Thank you.
Without seeing log files of the troubleshooting, it's really a tough call to make. Damaging a sensor upon removal is very possible but it's typically the threaded section that takes the damage. USUALLY, if it's able to be installed in the new 1Box, it should work as well as it once did. There are a lot of variables at play. The age of the vehicle and it's history of overheating the Aftertreatment system can also play big parts.
TheDieseler let me just put it this way: If it was your truck, and knowing that replacing the 1 box will cost $9100, wouldn't you want the nox sensors replaced first as specified in the Power Service Literature?
Well...It would certainly be worth a shot. I would explain the situation to the customer and explain that they’re reading as they should. Replacing them would have to be their call before going ahead with the 1Box.
Let me make this simple. One boxes are junk. When you get a nox efficiency code you need a new 1 box. Period. Or do what everybody else does, install a out nox
sensor on the out side of box in an area it will get hot . Let it smell clean fresh air, and bam your nox evfiency will go to 100 percent. No more derate. Once the dumb manifacturers make 1 boxes affordable, the mass public will stop with all the bypassing of the emission systems. There are more bypassed trucks on the road than compliant trucks. Theres not 1 fucking person going to pay 12k for a fucken 1 box. Not one.
That low temp test dobi need to do with cold engine
Warm engine or after regen?
The low temp ATD is like a regen expect that the HC doser does not inject. Doesn’t matter if it’s warm or cold
@@TwistedMetal51
Means ill start regen and unplug or unplug the connector and start regen
Thank guys
@@alexbaranya5432 do you have a ghg14 or ghg17? What’s your ACM software level? What faults do you have?
I have 2015 cascadia freightliner i am not sure what is that u ask
Just bought otr diagnostic
I changed the gasket and valves on def pump
and cleaned the 7th injector
I have a headache sorry can you get it a little simple please
This is way to much diagnosis with the way they charge these days you'd be better off just throwing parts at it until something sticks. Better that than paying a $6,000 diagnosis fee.
Can anyone help me please My truck shows me different code..it’s says "SCR closed loop control at maximum limit". High Diesel Exhaust Fluid (DEF) Delivery.
Gonna need to do an scr efficiency test.
How about Test strips for contaminated government bureaucrats ???
This system is a bad nightmare a dam joke, admit your wrong doing!
Stupid system. I deleted my
How does it running
Let me cleaner you and make you smart. Don’t wast your money on maintenance. It cost you a lot of expensive.. if you have this code spn 4364 fmi 18. Just just keep your nox outlet sensor out. You have check ligh on. But it’s work great. If that doesn’t work. Just go buy one box new not ramanufacture. It’s cheap only $6500 all sensor. $1500. Check my video I I hack my system 😂. It’s better then spend every day money. You will be good until 400000 miles
This is garbage of Diesel engine
😂
If you have cod 4364 18..
SAVE MONEY TO BUY THE ONE BOX