NJFBOA - Home of New Jersey's Camaros and Firebirds - View Single Post

zraffz · 07-21-2011, 04:36 PM

I originally had a bottom end bog on my 95 formula and it was missing up high. I did plugs and wires, it took away the top end miss but the bottom end still was hesitant.
Recently it started missing very hard up top (4,000+ RPMs) and down low under load a lot worse.

I ordered a cap, rotor, wires (being paranoid a few are too close to the headers), header wrap, and while it's all apart I got an electrical water pump/wiring.

I'm going to see if it fixes my issues and if not I will be moving onto checking the injectors and then replacing the coil/icm before finally buying a new opti... also plan on changing the fuel filter while I'm at it.

Does it sound like it can be coil/ICM related? Is it possible the ICM has a bad ground back to the head? Anyway to check lol?

07-21-2011, 04:36 PM	#1
zraffz Join Date: Feb 2010 Location: Stillwater Posts: 822 iTrader: (2)	Tune Up? I originally had a bottom end bog on my 95 formula and it was missing up high. I did plugs and wires, it took away the top end miss but the bottom end still was hesitant. Recently it started missing very hard up top (4,000+ RPMs) and down low under load a lot worse. I ordered a cap, rotor, wires (being paranoid a few are too close to the headers), header wrap, and while it's all apart I got an electrical water pump/wiring. I'm going to see if it fixes my issues and if not I will be moving onto checking the injectors and then replacing the coil/icm before finally buying a new opti... also plan on changing the fuel filter while I'm at it. Does it sound like it can be coil/ICM related? Is it possible the ICM has a bad ground back to the head? Anyway to check lol? Last edited by zraffz; 07-21-2011 at 04:37 PM.