my 93 firebird misses around 15oo-2500 rpms once its warm, then occasionaly wants to stall at a stop light, its a new ac delco opti but its my second one this year (first one had moisture in it ) and a new coil, kinda seems to me like the opti again but wanted more opinions on this...

 

make sure the coil bracket has a good ground and doesn't have any corrosion behind it. It could also be your ICM, or check if your wires are arching out. When its dark, start the car and open the hood and look closely for arching.

 

the wires arent arching at all and im gonna check the ground now....is there a simple way to check to see if the icm is bad?

 

I went through the same senario with my car, and i was told and fixed the opit, cap, rotor, plugs, egr valve, catalitic converter, air pump, fuel filter, mas. And it ended up being the plug wires. Drive through a car wash and see if it gives you hell, mine did every time i drove through the wash. And got Really hard to start.

 

ok ill try that then

 

x2 on the wires

 

eveything with the grounds and such looked ok...havet replaced the wires yet...but its getting wose, breaking up alll the time now but when i hit WOT it doesnt really miss at all