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Pedal Position Sensor Question

B

bmckinley

New member
I posted this same issue a few months ago but have some additional information and would like some feedback.

04GTP gives me a Reduced Engine Power and traction control error and goes into limp mode....ONLY if I "punch it". If I accelerate quickly, no problem, but if I really get on it, "Ding Ding:...Reduced Engine Power". In the past, I would get NO codes when this happened. Today, for the first time...I got codes (2138, 0102, 1125. I know what all these codes mean, but trying to diagnose since they can represent many things.

So here's what I've done: Cleaned MAF. Disconnected it. When disconnected, I get a MAF error code, so I suspect it's working. Replaced the throttle body electronics module. Same problem. I have not replaced the pedal assembly but that's next.

Thoughts? What are my chances of solving this problem with a new pedal assembly?

Thanks in advance.
 


The APP "should" fix the issue if the TB has been swapped already. If not then it's some weird wire harness problem but I havent heard of that problem yet, just the APP or the TB is normally the problem.
 
SnowTh1ef said:
Yay. No one likes reduced engine power. lol
Click to expand...


when my 03 gmc truck said reduced engine power, all it would do is idle, so you could drive it to the side of the road. only way to get it going again was to un hook the battery for like 15 minutes, then it would drive again for a while. then repeat. fun when your 100 miles from home.

turned out to be bad maf, no cel ever came on either.
 


Ok, so here's the good and the bad thing. At 87K, I had a catestrophic failure in the bottom of the engine...and I did not abuse this car....it just let go. So I found a motor in GA from a wreck, installed it with my boys for their Boy Scout automotive merit badge and it turned over on the first try...all the computers came online and it's been running flawlessly ever since. Nice thing about this? Well, when I started having problems, I had plenty of parts from the old motor...still in the garage, that I could swap out the MAF, throttle body, etc., to try to troubleshoot the problem. Not saying you should blow your motor to have test parts laying around, but it sure saved me some money this time around trying to figure out the problem.
 
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