Thread: vacuum leak
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Old 08-11-2007, 09:44 AM   #4
qwikz28
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its a manual with a mail order tune. i don't think the RPMs would surge as drastically as they do from a tune. they can sometime fly as high as 4k+ or down to the point of stalling, which it does at times on cold starts. this is not a once in a while thing either, it happens constantly. another reason i want to rule out the tune is because once it eventually finds idle, it idles damn well.

my first thought was the throttle body. so for safe measure, i replaced the TPS. no dice. popped the hood, motor was at ~3k, but throttle body was closed. car cannot rev without air right? wouldn't that constitute a vacuum leak?
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