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Old 07-02-2004, 09:00 AM   #1
Merilious
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Default Exhaust leak causing Idle problems?

I have a slight idle problem, it will go up and down from 750rpm to 1500rpm when at idle. When I rev the engine there is a pretty bad exhaust leak coming from the stock exhaust manifold. Can an exhaust leak be known to cause an idle problem?
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Old 07-02-2004, 09:35 AM   #2
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Old 07-02-2004, 12:04 PM   #3
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It should not affect anything, unless the leak is above an oxygen sensor.

Usually an idle problem is a bad sensor or vacuum hose.
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Old 07-02-2004, 12:32 PM   #4
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The leak is before the O2 Sensor. Where the four exhaust runners merge into two.
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Old 07-02-2004, 12:40 PM   #5
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Then yes, the exhaust leak is prob. the cause of your idle problem.
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Old 07-02-2004, 06:19 PM   #6
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OK, thanks.
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