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Warm engine, high idle, restart, it's just fine.

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Old 06-25-2017, 04:30 PM
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Car: 1989 IROC Convertible
Engine: 350 TPI L98
Transmission: WC T5
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Warm engine, high idle, restart, it's just fine.
High idle, restart, it's just fine. Nothing else changed.

If it is running high, it will not come down to the correct idle with any coercion. Pedal, driving, gear, nothing. A simple, quick restart fixes it.

Seems that ECU initializes with it in this weird range. I'm thinking dirty connections? Is this a clear symptom of a particular fix?
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Old 07-07-2017, 04:45 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
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Axle/Gears: J65 pbr on stock posi 10bolt
Re: Warm engine, high idle, restart, it's just fine.
Sounds like a bad ecm. Iirc I've seen this in a old post.
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Old 07-07-2017, 04:47 PM
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Re: Warm engine, high idle, restart, it's just fine.
https://www.thirdgen.org/forums/tpi/...-question.html
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