C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

94 no spark

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Old Sep 26, 2024 | 08:04 PM
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Liam Dertinger's Avatar
Liam Dertinger
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Default 94 no spark

So I installed a full msd ignition system when my opti died. Msd opti, ignition coil, 6al, and wires. Worked great for a 3 months less than 300 miles. 2 weeks ago it took a while to start but eventually turned over n drove fine. Then last week same starting issue and drove fine until I parallel parked and the car died in reverse. Service asr and battery light both went on. Wouldn't start again. I started by removing the 6al, nothing. Then changed the ignition coil, nothing. Then changed the ICM and still nothing. Absolutely 0 spark at the plug. Fuses are all fine. No cut wires everything is plugged in properly. Haven't pulled codes but will tomorrow. My worry is this being the opti again or even worse a damaged wire somewhere in the harness. Anyone got some ideas or things I should test? Any way to test the opti without removing it?
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Old Sep 26, 2024 | 09:20 PM
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is check engine light on with any codes? I am on vacay without access to FSM but you should be able to search here to find procedure to check Opti from the connector or someone will chime in.
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