Pontiac Problems? Ask a Mechanic for Answers ASAP
it would be very rare for a TPS to cause this issue
more so a throttle cable or most common a very dirty throttle body causing the butter fly to stick in the throttle body bore
when the car is warm and acting up if you leave the car running and pop off the throttle cable off the throttle body does the gas pedal and cable work very easy with no resistance ?
if when its acting up and the cable and pedal moves freely shut the engine off and remove the air hose into the throttle body and with carburetor cleaner clean out the throttle body butter fly as best you can then see if it still does this
if it does remove the TPS and see if it still does this if it does not act up with the TPS removed then feel the TPS lever and see if it feels stuck or hard to push if it does replace the TPS
here is the TPS
yes you can remove the MAF to clean
carb cleaner will not hurt the MAF
and yes do not run the engine when cleaning it
just clean it as best you can and see if it stops sticking
how are you making out ?