Is it my ICM?
Thread Starter
Senior Member
Joined: Mar 2011
Posts: 578
Likes: 1
From: Colorado Springs
Car: 91 firebird Formula 350
Engine: 350 TPI
Transmission: N/A, working on a t5 swap
Axle/Gears: 3.73 posi
Is it my ICM?
I'm trying to figure out why my car is running rough, dying occasionally, and when I put a timing light on it, the strobe isn't consistent. I've tried two different lights to confirm that it's not the light. The coil is new, the plugs and wires are new, and the ECM is new. Could my ICM cause the timing light to have an erratic strobe?
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Thread Starter
Senior Member
Joined: Mar 2011
Posts: 578
Likes: 1
From: Colorado Springs
Car: 91 firebird Formula 350
Engine: 350 TPI
Transmission: N/A, working on a t5 swap
Axle/Gears: 3.73 posi
Re: Is it my ICM?
thanks for the link I'll be trying out that test as soon as I get a chance.
Thread Starter
Senior Member
Joined: Mar 2011
Posts: 578
Likes: 1
From: Colorado Springs
Car: 91 firebird Formula 350
Engine: 350 TPI
Transmission: N/A, working on a t5 swap
Axle/Gears: 3.73 posi
Re: Is it my ICM?
Well I just ended up buying the ICM. I figured it couldn't hurt to replace a 20 some year old part. didn't seem to affect the idle but I haven't got a timing light on it yet to see if it's really doing any better.
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RedLeader289
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May 28, 2019 01:47 PM
