LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Just wasted $300 on a Opti that didnt fix my problem, now what?

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Old 01-11-2007, 04:39 PM
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Default Just wasted $300 on a Opti that didnt fix my problem, now what?

So now I have a new Opti and a new coil, whats next, the PCM? I have NO SPARK!
Old 01-11-2007, 04:50 PM
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did you check the Fuse?
Old 01-11-2007, 04:52 PM
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Did you scan your PCM for trouble codes?
Old 01-11-2007, 05:03 PM
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Would the Opti harness have anything to do with it? Just thinking out loud...
Old 01-11-2007, 05:10 PM
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what is the problem?
Old 01-11-2007, 05:18 PM
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Well it started by having hard starts, then would start and run rough and die, then would not start at all. Dead, no spark. Yes I checked the ignition fuse in the under hood fuse box and it actually was blown. I thought that was my problem, but I put a different fuse in it that was good still no spark. Im checking spark at the plug from the plug wire. How do I know if the coil or opti that I have already changed out are even good. I hate eletrical problems! Pcm? Ignition control module? Dont know what to check or where to start. But I dont like guessing and wasting money. Im on disability and make VERY little money..
Old 01-11-2007, 06:44 PM
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Use this diagnostic http://www.mainstreamtopics.com/foru...p?showtopic=78
Old 01-11-2007, 06:52 PM
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Originally Posted by fergymoto
I thank you greatly for that link! Wish I would have found that months ago.
Old 01-11-2007, 07:11 PM
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Did you check the plugs i had a problem for a while with my 383 but found out that i had a bad batch of plug wires try changing your wires
Old 01-11-2007, 07:11 PM
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Could be the ICM, get it tested at a local auto parts store.
Old 01-11-2007, 10:52 PM
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No problem, let us know what you find buddy.
Old 01-11-2007, 11:00 PM
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Check the wire that plugs into the opti. The one on my Firebird corroded bad and the car would not spark. I cleaned it with WD-40 and a wire brush. May not be the problem but it is free to check.
Old 01-12-2007, 10:07 AM
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If you had a blown fuse, I would check to make sure you dont have a short anywere. Fuses like that just dont blow for no reason.
Old 02-04-2007, 11:35 PM
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FIXED! It was the Ignition control module!
Old 02-05-2007, 12:15 AM
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Originally Posted by Bipolar
FIXED! It was the Ignition control module!
what'd ya do to it to fix it



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