i have an '82 z28 with crossfire injection. i believe that my ESC module is bad, however i cannot find a new or used one to put on it to test my theory. i have been getting a code 43 and the car lags if i step on the gas too fast. i think that the esc is seriously messing up my timing but i just wanted to make sure that it couldnt be anyting else before i rip that crap off and put a carb and new dist in it. any advice will be greatly appreciated. thanks.