1990 GXL won't idle when warm

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03-17-18, 06:41 PM

RJ TOUGE

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1990 GXL won't idle when warm

Not sure what to do, it's an NA S5 13b with 100k miles but runs very strong, but recently its been dropping from 1k to 500 RPM to sometimes stalling while warm, but it idles fine when cold/warming up to temp. Help thanks

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05-26-20, 09:37 PM

mazdadud

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05-27-20, 09:18 AM

Hot_Dog

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Quote:

Originally Posted by RJ TOUGE

Probably the best place to start would be to check for trouble codes. Here's a link that might help you get started: 89-91 CPU Trouble Codes

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