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2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

I disconnected the battery for well over an hour. Still having the same problem.
Any other ideas?
 


Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

i didnt read.. have you cleaned the maf?

the IAT built into the maf will cause that kinda problem, so will a sever vacuum leak
 
Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

may sound super dumb but ive had the same thing happen all because i didnt plug a few things back in so mack sure EVERYTHING is plugged back in mine was not plugging in the maf and evap system that created my problems
 
Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

So here's an update on my situation.
I replaced the gas pedal with the accelerator pedal position sensor and reset the computer, then got the same code after driving for a few minutes. I sent the part back and got a new one from the factory repeating the process and got the same results. Next I cleaned out and then replaced the mass airflow sensor and still no luck. The same issues with the same codes. Any other ideas?
 
Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

I'm with Mad Monkey. I had a similar fate when a vacuum line was off.
 
Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

I had the same issue, and swapped out the pedal and all was good. it was like $60 at autozone.
 


Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

You need to do a app learn when you install a new pedal assembly.

(in theory)
 
Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

is that a process performed with a scanner?
I have now replaced the mass airflow sensor and still no luck. I did however just noticed that my serpentine belt is heavily worn and in need of replacement. If one or more Pully has slipped and my timing is off could that be causing this problem?
 
Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

And at no point has any vacuum hose been removed, just the main intake tube with the maf assembly
 
Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

Your belt has absolutely nothing to do with your timing.
 
Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

chadwick said:
is that a process performed with a scanner?
I have now replaced the mass airflow sensor and still no luck. I did however just noticed that my serpentine belt is heavily worn and in need of replacement. If one or more Pully has slipped and my timing is off could that be causing this problem?
Click to expand...

No. You need to go through and test the connections between your PCM and app and tb
 


Re: 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings

chadwick said:
is that a process performed with a scanner?
Click to expand...

yes, you will need a bi-directional scanner. Make sure the peddle is in its 0% throttle postion. When you start the relearn, the sensor output is recorded and used as your new baseline for throttle postion


if that doesnt help u might want to check for wiring problems between the app and tb
 
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