P1229 / P0171 / P0174 Trac/Asc/ Failsafe coming on
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P1229 / P0171 / P0174 Trac/Asc/ Failsafe coming on
I recently had my CEL come on and it threw P1647. Narrowed it down to my upstream O2 sensors and replaced them both. Now whenever I turn the car on it will idle for about a minute and then the idle gets loopy and dies. It's throwing P0171 / P0174 and P1229.
I have absolutely no idea what is causing this. It's acting like it's Oxygen starved, but I have no idea why. Only thing I could think of was a TPS fault leading to the engine being flooded and stalling out. I have never diagnosed that issue though and don't even know where to begin.
Any help is much appreciated!
Things I have done:
Used electrical contact cleaner on the throttle sensors
Cleaned out Full/Part load breather openings
Checked to ensure tight fit on plastic air tube (Can't remember the name of this stupid thing) Goes from MAF to Throttle body
I have absolutely no idea what is causing this. It's acting like it's Oxygen starved, but I have no idea why. Only thing I could think of was a TPS fault leading to the engine being flooded and stalling out. I have never diagnosed that issue though and don't even know where to begin.
Any help is much appreciated!
Things I have done:
Used electrical contact cleaner on the throttle sensors
Cleaned out Full/Part load breather openings
Checked to ensure tight fit on plastic air tube (Can't remember the name of this stupid thing) Goes from MAF to Throttle body
Last edited by Rickcusaf; 09-14-2011 at 08:06 PM.
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It was those very codes. I took off the induction elbow and found a small piece of foam which had come out of the cam cover, through the FLIB, into the elbow and wedged in the throttle plate. Removed the foam, cleared the codes, and the car runs great. Got lucky. Pulled the cam cover and removed the foam and replaced it with the original brass turnings. The left side still had the original turnings in it. I've had the car seven years and didn't even look in that compartment when I replaced the tensioners.
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