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

Opti spark issues HELP!

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Old 06-03-2017, 02:29 PM
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CA Vette Chick
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Default Opti spark issues HELP!

Changed the icm- surely needed changing...But she refuses to start. Sooo-- on the Opti spark, is it better to go oem? Should I look aftermarket? Help!!! I need to get this done in a few days.

Last edited by CA Vette Chick; 06-03-2017 at 02:42 PM.
Old 06-03-2017, 04:02 PM
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pcolt94
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What year car?
Have you done any basic checks yet?

Check for spark off coil.

Check and listen for 2 second prime.

Check fuel pressure.
Old 06-03-2017, 05:11 PM
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don hall
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If you decide an opti is needed, research SacCityCorvettes.

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