1990 5.7 IROC-Z runs rough 2-4-6-8 not firing
Thread Starter
Joined: Feb 2005
Posts: 410
Likes: 12
From: Trumbauersville PA
Car: 88 IROC-Z twin turbo
Engine: forged 383 8-1 compression
Transmission: t56
Axle/Gears: 9in 3.50's trac loc moser axles
1990 5.7 IROC-Z runs rough 2-4-6-8 not firing
Hey guys, I have no combustion on pass side car runs like crap, no power noticible miss ect If I put my laser thermometer on exhaust ports 2-4-6-8 they're cold 80-90 degrees. 1-3-5-7 are 500 plus degrees Fuses are good, new walboro 255 pump, new injectors, new distributor, fresh tune up Any insight? Idk what to check next could it be a grounding issue?
Last edited by j88l98irocz; Jan 3, 2015 at 07:46 PM.
Thread Starter
Joined: Feb 2005
Posts: 410
Likes: 12
From: Trumbauersville PA
Car: 88 IROC-Z twin turbo
Engine: forged 383 8-1 compression
Transmission: t56
Axle/Gears: 9in 3.50's trac loc moser axles
Re: 1990 5.7 IROC-Z runs rough 2-4-6-8 not firing
Bump
Thread Starter
Joined: Feb 2005
Posts: 410
Likes: 12
From: Trumbauersville PA
Car: 88 IROC-Z twin turbo
Engine: forged 383 8-1 compression
Transmission: t56
Axle/Gears: 9in 3.50's trac loc moser axles
Re: 1990 5.7 IROC-Z runs rough 2-4-6-8 not firing
Found the problem, the fuel rail and injectors on cold side were clogged.
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