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

Bad coil? (delteq opti delete)

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Old Oct 14, 2007 | 01:11 PM
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Default Bad coil? (delteq opti delete)

i have just done the delteq opti delete on my car and the car starts to missfire stumble and then all together cut out cylinders until it just dies. It only does this after the engine fully heats up (15-20 min). I have the coil pack from the kit mounted on top of the valve covers which is why i think they may be getting to hot then just giving out (even with the heat shield). has anyone else had this problem with their delteq kit?
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Old Oct 14, 2007 | 01:29 PM
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when I had the delteq on my car it would have a constant misfire, i think it was the opti box they sent me was bad. I just returned it and stayed with the opti.
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Old Oct 14, 2007 | 07:07 PM
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If the opti is bad... the delteq will not work.. the delteq still uses the opti for a signal
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Old Oct 14, 2007 | 08:38 PM
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Correct, your Opti will still need to have a good optical sensor, since it is used as the signal to fire each cylinder.
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Old Oct 14, 2007 | 10:35 PM
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Ignition coil module maybe?
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Old Oct 15, 2007 | 10:09 PM
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thats what i think it might be
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Old Oct 16, 2007 | 05:24 PM
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Talk to JC at Deltec. He helped me resolve my issues. Be patient - troubleshooting electrical WITH mods is a pain.
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