Hi,
I've installed '02 commodore engine on ZX, I've got 99 pcm (camaro). When I connected the pcm to the car it run nice, next day it was surging and bombing bad. The third day it run okay, then bad again. After few days, most of the sensors can't be viewed by the scan tool; it says "invalid PID" for basic stuff such as engine speed
Do u think the pcm got malfunction, it gave me over 600% duty cycle on both sides in addition to 0 to 40 spark within one sec.
What can I do to save my credit, is there any thing I could remove from this pcm and install in another one?