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Weird Fluctuating Idle 800-1000 rpms

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Old 07-21-2008, 12:23 PM
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Weird Fluctuating Idle 800-1000 rpms
Lately my car has a weird fluctuating idle. When I put the car in neutral at a stoplight the car would stay at 1k rpms and then drop down to around 800 after a couple seconds. Sometimes it would go back up to 1k again?? What is wrong??
 
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Old 07-21-2008, 12:49 PM
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sounds like a vacuum/intake leak. Put a pressure tester/smoke machine on it
 
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Old 07-21-2008, 01:09 PM
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could it be battery or alternator related? let us know what you find
 
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Old 07-21-2008, 01:10 PM
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....maf?
 
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Old 07-21-2008, 01:13 PM
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MAF or boost leak or both

probably maf
 
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Old 07-21-2008, 01:20 PM
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sounds like a small vacuum leak bud... Not the MAF since you've got the hitachi
 
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