2009 - 2015 Honda Pilot p3400 p3497 Valve Pause System Stuck Off Fixed! Replace Oil Pressure Sensor
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- Опубликовано: 25 июл 2024
- Sorry my audio was recording through one channel only on this and a few of my other recent videos. I just fixed the problem for all my future videos, but I can't change the audio on this upload.
amzn.to/3Eg1gJu - Honda Genuine (37240-R70-A04) Oil Pressure Switch (Same part number for front or rear bank)
amzn.to/3ZkmUEz - O-ring for both sensors part number 91319-paa-a01
amzn.to/3Ejvxam - DEWALT 1/2" 6 PT Deep Socket 24MM
amzn.to/3EjbgS6 - NEIKO Drive Premium Breaker Bar
amzn.to/3IcziiX - TOPDON AL400, OBD2 Scanner, Full OBDII Code Reader, Check Engine Light Scan Tool
Just a quick video showing how I replaced the Oil Pressure Sensor / Switch on the Rear Bank (Bank 1) on a 2011 Honda Pilot. The vehicle had lost power and the check engine light came on. After reading the codes, I found that it had a diagnostic trouble code P3400 for the Cylinder Deactivation System. Other Code Readers might say 'Valve Pause System (VPS) Stuck Off'.
The P3400 code is for the Rear Bank of cylinders (Bank 1) nearest to the firewall. If you have the DTC P3497 it is for the Front Bank of cylinders (Bank 2) nearest to the radiator.
You will see that this is a very quick repair (less than 10 minutes).
This also applies to other Hondas with the active displacement or the VCM (Variable Cylinder Management). The repair would be the same process for the P3497, but it's located in the front bank of cylinders, on the front, passenger-side of the engine.
This can be an intermittent or constant problem and can be caused by several things but is commonly caused by a faulty oil pressure sensor.
It can also be caused by Low Engine Oil Level or Dirty Oil.
In our case, changing the oil pressure sensor (or switch) and O-ring solved the issue. This part is also called the rocker arm oil pressure switch.
This problem is quite common among many other Honda and Acura Models including the Honda Odyssey, Honda Accord, Honda Ridgeline, Acura MDX, Acura TL and more.
Tools Needed:
Large flathead screwdriver to remove the engine cover
24mm Deep socket and ratchet and/or breaker bar
Torque specs I found online: 25Nm or approximately 18 ft. lbs. I recommend checking that in your manual to make sure that's correct.
Do not overtighten this sensor, because you can easily strip the threads.
We were not able to clear the DTC for the P3400 because it was listed as a 'permanent code', but after driving the car for several days, that code went away on it's own.
Thanks for watching!
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-Dan the Fix it Man
www.danthefixitman.org
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Dude, thank you so much for this video. My wife had this problem today and we thought we would have to limp the car to a mechanic. I saw this video and did the repair myself. You totally saved us. Cheers.
@@modernarizona happy to hear it helped you out!
Wife’s truck went into limp mode tonight. Got the same code on the side of the road, watched the video and changed it in under ten minutes. Up and running. Thank for the video!
Also in my case, the VTM 4lock, check engine, and battery light came on. After changing oil pressure sensor just check engine light was on but cleared after about 10-15 miles of driving.
Thank you sir, today, you was my hero
Worked for me, code is off, eco light comes on. Hardest part was finding/retrieving old oil pressure sensor after dropping it. Finally remembered telescoping magnet wand - worked like a charm. Thank you!!
Disable the vcm
Thanks, I am going to change both on my wife’s Pilot today
Thank you so much for this simple and east to follow guide on how to resolve those codes. All the Amazon links worked perfectly.
Question, Question
does the plug that goes to it, has 12 voltage while electric texting , my 08 pilot is running on 3 cylinders, I text it the oil pressure sensor plug, but I don't get no circuit, ...
Nice very helpful
Thanks for the great update, it's a big help. I was just curious what's the app you're using on your phone for all those notifications?
Great explanation. Thanks so much for sharing
I was about to change my purge valve then I saw your video. I have 3400 AND 3497, so I will have to replace both? It's 2011 pilot if you don't mind showing locations:-). Thanks
All the items are listed on your links including the sensor?
Thanks for the video. Should the check engine light disappear immediately after this fix?
Hi Garrett,
It will take a bit of drive time usually for the check engine light to clear on it’s own, but you can reset the check engine light by disconnecting the battery, or by clearing the codes with a scan tool/code reader.
Thanks for watching!
-Dan the Fix it Man
Thank you
We need a video on how to disable the the vcm
Would you recommend using Hondabond High-Temp Silicone Liquid Gasket before installing the oil pressure switch?
Definitely no
Followed your video. Did everything correct. Car ran good on the freeway, but when I exited, it stalled and and the same message came up. Any ideas
Sorry you're still having trouble with it. That Sensor is usually the culprit, but it could be several other things as well. Here's a pretty good write up that might help you diagnose the problem: www.backyardmechanic.org/how-to-fix-honda-engine-error-code-p3400/
This did not clear the P3400 code for me. I have eliminated the other possible causes, except bad wiring. Oil is clean and full. I cleanned the MAF sesor too. It's time to take it to someone. Changing the oil pressure sensor is a one-minute task. Nothing to it.
What was wrong with your car?
For those un-informed about the Variable Compression Management (VCM) issues, and the engine failure it can cause, then look into the VCM bypass/delete options that are available. Every car manufacturer that has produced ‘cylinder de-activation’ (eg Ford, GM, MB, etc) vehicles in the past and present all prematurely end up in junkyards!
My local firestone said all parts that may need to be replaced were prior to me bringing my 2010 Accord to them. Said it needs the ECM/PCM to be updated to clear permanent code. Any input?
Permanent codes will ALWAYS be stored in the PCM unless cleared thru dealerships software. No amount of drive cycles will clear permanent codes.
A vehicle CAN pass emissions inspections if there are permanent codes stored as long as all monitors are Ready and the CEL is not on.
There are three types of code storage:
Pending Code.
Stored Code.
Permeant Code.
do you have a video for p0842 at fluid pressure switch A for honda pilot 2011
Hi Eric,
Sorry, I don’t have a video for that.
Thx!
-Dan the Fix it Man
Would this cause limp mode and the engine to knock and run horribly?
Limp Mode, maybe. But knocking? No, that’s something else. Check ur oil levels. Or could be something inside the timing belt system. Like a tensioner etc
Could this also activate a vtm-4 light?
90% of time, if the engine light is on, the VTM-4 light turns on. Which means the 4x4 is turned off. Usually a scanner will show you a code that tells you to check the engine system
I have the same thing too
Does this work on 2010 honda accord crosstour?
I’m not sure, but if it’s the same engine, It should be the same process to change the sensor
Mine didn't come with an o ring, and no one seems to have it in stock. What if I just leave the old o ring in there.
I left the old O-ring. It should be fine.
I have changed the alternator and then after one week I got check engine and VTM-4 on the dashboard.
If I change the same part in this video, will my problem get solved ?😢😢😢
You need to get the codes read on the vehicle to see what is causing the check engine light and vtm-4 light to come on. You can buy a very inexpensive code reader on amazon.com.
Best of luck to you!
-Dan the Fix it Man
@@DantheFixitMan thanks, I have them all
P3400
B1239
B1245
B1246
77-01 powerstrain system failure current vtm-4
@@mohammadal-motaaem3153 The P3400 code refers to a problem with the Cylinder Deactivation System, which is responsible for improving fuel efficiency by disabling specific cylinders during light-load driving conditions. The most common cause for this code is low oil level or dirty oil, or a bad sensor like I changed in this video.
The B1239 code is an Open or Short in the Drivers Mode Control Motor Circuit. And the B1245 code is a short in the rear air mix control motor circuit. HVAC control unit. Signal error.
The B1246 is problem in the rear air mix control motor circuit, linkage, door, or motor. HVAC control
unit.
You might want to make sure your battery and grounds are all good first since you're getting multiple possibly unrelated codes. Or, you may just have a few different problems. Since you said that you have just changed the alternator, I would double check that your battery is good. Maybe go get it tested/charged and make sure all the connections are good first. That's where I would start. Then, maybe try the oil pressure sensor next...
Best of luck to you.
-Dan the Fix it Man
@@DantheFixitMan Thank you so much
will this work for a honda pilot 2015
Yes, it is the same engine
Will this sensor make the oil percentage go down on the display? I changed the oil and within 2 weeks the percentage went from 100% down to 40%
Hi Eric,
I don’t believe there is one specific oil life monitor type of sensor in this vehicle that determines the Oil Life Percentage.
It’s possible that the computer could be getting an incorrect reading if that sensor is dirty or bad, but you would probably get a check engine light as well.
The manual says:
“Based on the engine operating
conditions and accumulated engine
revolutions, the onboard computer in
your vehicle calculates the remaining
engine oil life and displays it as a
percentage.”
It might also be using the signal or pressure reading from the two upper oil pressure switches, but I am really not sure. Of course, I am assuming you reset the oil life percentage after you changed the oil?
Does the oil look dirty already after 2 weeks? How many miles have you driven it? The operating temperatures are also be a factor in the oil life percentage…
Thanks for writing back. Yes I reset oil life after. The check engine was on before I changed the oil and the vtm-4 is coming on sometimes as well. USPS just delivered the oil sensor. Im going to replace it tomorrow morning. What size socket do I need?
@@ericbezares177 it’s a 24mm socket
Update
Thanks for the video, Dan. I had the same 3400 code on my 2013 Honda Pilot, the oil life dropped to 70% after 300 miles & the VTM-4 light also came on same time. How many driving cycles or miles does the car have to go put out the MIL & VTM-4 lights please? Thanks
Can I get away with disconnecting this to de-activate vcm and connecting a dummy sensor to the electronic connection to avoid a CEL?
It won’t work. They sell aftermarket electrical harnesses that disable the VCM by tricking it that it’s under load so that ECO mode stays off.
@jimenezroberto55 Ok,thanks but at the same time leaving this disconnected has worked wonders for my Honda do you think it will harm engine if I leave this disconnected?
This is probably a really dumb question, but is there a trick to getting the sensor unplugged? 🤦 I'm just trying to see what my sensor looks like to order the right one and I can't get it unplugged.
No, it’s not a dumb question at all, sometimes they are a little stuck. It might take a little persuasion with a small pick or screwdriver. And you do need to make sure you are pushing the tab in enough to release it.
Best of luck with it!
Needle nosed pliers did the trick, since the tab is facing the firewall.
That's my problem too.
Where is bank 2 located
Bank 2 is toward the radiator
I change oil pressure switch, 100 miles later the p3400 came back...theres anything else could be..
Usually the code is very specific, but bad oil, spark plugs, coils or injectors can cause it. Many other things as well can cause bank 1 to deactivate like the VTEC Solenoids. I would suggest you get it scanned. Also, I only put OEM sensors. Aftermarket tend to fail more than you want to and cause confusion. Good luck
Put the cover in the trash
It's nice that you list the torque specs, but you're too cheap and lazy to use a torque wrench.