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Chasing high idle

Old 08-21-2008, 07:23 PM
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MUSTANG89SALEEN
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Default Chasing high idle

I have an 89 fox and it idles fine for a while and jumps up to 1500 rpms or soo on its own checked for vacuum leaks and found nothing i have egr disconnected and all smog pump vacuum all caped off... N e ideas? What would cause computer to raise idle????
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