Check Engine Light... Thoughts?
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 36
Likes: 0
From: Indiana Pennsylvania
Check Engine Light... Thoughts?
Okay first the other day on way home from work the gas gauge dove from over 1/4 tank to E (but obviously wasn't empty). Next drive the gas gauge was back up to normal, but again on way home after admittedly getting on it a little bit I noticed the check engine light on after stopping at a store and restarting the car. So anyway, here are the codes I've gone through and cleared them but want to know if I should have the car tuned/and or is there anything I should repair or replace?
B2262 H Horizontal Position Sensor Fit
B2263 H Horizontal Position Sensor Fit
B2265 H Horizontal Position Sensor Fault
U1000 H U1000 Loss of Communication Undetermined
U1064 H Loss of Communications with BCM
P1431 H Fuel Level Sensor 2 Circuit Performance
P0171 H Fuel Trim System Lean Bank 1
B2262 H Horizontal Position Sensor Fit
B2263 H Horizontal Position Sensor Fit
B2265 H Horizontal Position Sensor Fault
U1000 H U1000 Loss of Communication Undetermined
U1064 H Loss of Communications with BCM
P1431 H Fuel Level Sensor 2 Circuit Performance
P0171 H Fuel Trim System Lean Bank 1
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
I'll start you off with looking for a vacuum leak or unmetered air getting past the MAF sensor, such as the air bridge coming off or the PCV line connection tube to the intake possibly having a hole in it. Next, you might want to look at the BCM to see if any water has gotten to it via a plugged up udder. Look for wet carpet there in the passenger footwell. Also, just a quick thought, how old is the battery?
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 36
Likes: 0
From: Indiana Pennsylvania
I can't speak for the age of the battery though the volt meter reads strong, I just purchased the car in January. I did install a Vararam B2 Intake, no power duct so its possible that I may have a slight air leak somewhere I will check into that, and also the carpet. On baby duty for the day now so have to check these things tomorrow. As far as driving the car goes can I do some harm to it, or if the codes don't pop back up should I still be concerned?
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
If its running lean, the damage will be slower over time but I would get this resolved soon so that you aren't throwing away money on gas too. The battery needs to be a minimum of 12.5vdc with the ignition off.
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 36
Likes: 0
From: Indiana Pennsylvania
Okay, gotcha going to test for vacuum leaks first thing tomorrow; two more questions for you:
If I fail to find a leak, other possibilities for lean?
Battery turns out good, other possibilities for BCM/how costly/involved would that be to replace?
Thanks for the help, very appreciated.
If I fail to find a leak, other possibilities for lean?
Battery turns out good, other possibilities for BCM/how costly/involved would that be to replace?
Thanks for the help, very appreciated.
Le Mans Master
Joined: Nov 2005
Posts: 6,993
Likes: 25
Okay, gotcha going to test for vacuum leaks first thing tomorrow; two more questions for you:
If I fail to find a leak, other possibilities for lean?
Battery turns out good, other possibilities for BCM/how costly/involved would that be to replace?
Thanks for the help, very appreciated.
If I fail to find a leak, other possibilities for lean?
Battery turns out good, other possibilities for BCM/how costly/involved would that be to replace?
Thanks for the help, very appreciated.
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 36
Likes: 0
From: Indiana Pennsylvania
After a visual inspection I noticed that one of the hose clamps had bound up when it was tightened apparently because it was still partially loose. Tightened it up let the car idle and took it for a spin, came back no engine light or codes. I'm thinking possibly the BCM codes were from when I first noticed the check engine light before I knew about the built in scanner I D/C'd the battery to try and clear codes. Not sure but possibly this caused the BCM codes, hopefully all is solved. Checked other problem areas and everything was fine far as dampness and grounds.
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Thread Starter
Intermediate
Joined: Dec 2011
Posts: 36
Likes: 0
From: Indiana Pennsylvania
So after a few more short trips all was fine, I then took it to work a 50 mile commute each way. Everything in the morning was good, on the way home I passed a few cars, came home parked it then took it out a short time later, on that cold start check engine light was on again, this time reading the following:
P0175 Fuel trim system, rich bank 2
P1431 Fuel level sensor 2 circuit performance.
Any thoughts or ideas? I'm considering just taking the car and having it tuned next week.
P0175 Fuel trim system, rich bank 2
P1431 Fuel level sensor 2 circuit performance.
Any thoughts or ideas? I'm considering just taking the car and having it tuned next week.
Melting Slicks
Joined: Mar 2004
Posts: 2,410
Likes: 412
From: Horseshoe Bend ID
The 1431 code is a stuck/failed right side fuel tank sender. A "tune" is not going to fix it. I just replaced both senders to fix the usual gas gage problems--had to partially drop both tanks to fit the things in.
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 36
Likes: 0
From: Indiana Pennsylvania
I was more thinking that the tune would cure the running rich problem, I wouldn't think that the fuel sender problem would be causing this. Since you have experience with the senders about how much did it run your for both and how much trouble was it to do? Appreciate any information you could provide me with.
Melting Slicks
Joined: Mar 2004
Posts: 2,410
Likes: 412
From: Horseshoe Bend ID
I was more thinking that the tune would cure the running rich problem, I wouldn't think that the fuel sender problem would be causing this. Since you have experience with the senders about how much did it run your for both and how much trouble was it to do? Appreciate any information you could provide me with.
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 36
Likes: 0
From: Indiana Pennsylvania
I was afraid of that, I used to work on cars for a living and I'm currently debating tackling this job myself, also considering just letting it go and just topping the tank off each time I drive it. However I am concerned that possibly this could be a larger issue and leave me stranded at some point? Any idea if this problem can result in the sending unit just no longer working and cutting my fuel off?
Melting Slicks
Joined: Mar 2004
Posts: 2,410
Likes: 412
From: Horseshoe Bend ID
I was afraid of that, I used to work on cars for a living and I'm currently debating tackling this job myself, also considering just letting it go and just topping the tank off each time I drive it. However I am concerned that possibly this could be a larger issue and leave me stranded at some point? Any idea if this problem can result in the sending unit just no longer working and cutting my fuel off?
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 36
Likes: 0
From: Indiana Pennsylvania
Yeah been reading through those, but knowing that it should just be a gauge problem I think I'll hold off on dropping the tanks, maybe I can make that a winter project. Thanks for the help.
