Corey Prashker
New member
2005 Grand prix gtp stock it hesitates to accelerate, sometimes car feels very slow. Sometimes it acts very normal and is a rocket. I changed plugs wires... just tired of throwing money at the car. I even had the PCM updated at the dealership. I did notice that problem seems to go away when I restart the car sometimes.
Another way to explain issue is say I'm at a light. I press throttle 1/4 of the way, sometimes it accelerates very slow. When the car acts normal it squeals the tires a bit.
I do see that two members fixed the issue somewhat with an aftermarket PCM tune. Any advice is greatly appreciated as this is making me go crazy.
Another way to explain issue is say I'm at a light. I press throttle 1/4 of the way, sometimes it accelerates very slow. When the car acts normal it squeals the tires a bit.
I do see that two members fixed the issue somewhat with an aftermarket PCM tune. Any advice is greatly appreciated as this is making me go crazy.
