i have a 1995 z28 with a 150k miles on it...i was having a stumble/hesitation in low rpms...but not turned into a no starting problem...i have changed plugs, wires, coil, opti, o2 sensors, egr valve, fuel injectors...anyone have any ideas on what this could be.....it turns over but doesnt start....i was wondering if since ive never changed out my icm........could that be it???

 

do you have spark and or fuel??? could be either. you really need to know..

 

Do we understand that it would start until you did the repair and now it won't?

If that be the case, you should look at the plug wires to be sure they are in the correct order and seated all the way.