ok i have a 1995 z28 and i had my thermostat removed about two weeks ago, since then my car has been in a stumble hesitation mode in low rpms, gets worse as the car heats up...could the thermostat messed up the pcm readings??

 

had your t-stat REMOVED or REPLACED, im sure taking it out would cause some problems..... other wise

*cough*optispark*coughcough*