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

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Old Jun 26, 2014 | 09:05 PM
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Default Ignition fun

I'm guessing it is something simple but I have an msd blaster coil for my hotcammed lt1 and I have power going to the plugs on the coil but not getting any spark. Any ideas?
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Old Jun 27, 2014 | 07:10 AM
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Originally Posted by Slow86vette
I'm guessing it is something simple but I have an msd blaster coil for my hotcammed lt1 and I have power going to the plugs on the coil but not getting any spark. Any ideas?
..... The Ignition control module (mounted with the coil) tells the coil when to spark based on input from the Opti-Spark ... most chain auto parts stores will test the ICM for you ... you can try a known good coil in place of the MSD or the OEM coil if you still have it .........
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Old Jun 27, 2014 | 05:50 PM
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Originally Posted by C409
..... The Ignition control module (mounted with the coil) tells the coil when to spark based on input from the Opti-Spark ... most chain auto parts stores will test the ICM for you ... you can try a known good coil in place of the MSD or the OEM coil if you still have it .........
I appreciate the idea. I've done a swap on an early tpi car, and I'm honestly tired of looking at it since I hate wiring haha I replaced the coil thinking maybe the contacts wore out and no change. I will go test the voltage at the icm and if it's enough then I will go buy a new one. Hopefully I get spark. I'm ready to haul *** again.
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