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Everything Electrical & Electronic Have an electrical problem? Lighting, Alternators, gauges, DIC, HUD, etc? Post it here. Please post Audio problems in the Audio forum, and Engine control problems in the appropriate Mechanical forum for your year.

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Old 09-18-2004, 10:32 PM   #21
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Ok. I found the spark issue. I actually had an exhaust leak right below the ICM.
ALthough small, it was blowing a plasma cutter stream of hot exhaust gasses under the ICM. This caused the first coil to short out and the ICM to crap out. Thats why it ran fine when cold, and puked when it got hot. I installed an exhaust manifold ( header ? ) gasket and all seems well. The gasket was a real ... witch to put on. I got pictures I can post later when I figure out how. Also, I've traced this iginition system all the way through on each wire and each connector. If anyone has any questions let me know !
I also purchased a set of 1992 SSEI factory manuals .... lots of good stuff.

THANKS everyone for the replies and info. Burnouts and mods coming soon.


1992 SSEI
1992 SSEI Bonneville with all the options except heated windshield and ride control.

Mods Include 1998 SC'd Delco Ignition with Belden wires.
Autolite 104 plugs ,180 degree tstat
K&N Filter with ricepipe, 2.3 inch pulley with ZZP idler
Ported exhaust headers, Poly end links.
High flow cat. TPS tweak, Boost bypass mod
High low fan override.

" Always try it yourself. I bet the guy you pay to repair it broke a few before he fixed your'*. "
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