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revs keep going up and down

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Old 08-16-2008, 05:35 PM
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Default revs keep going up and down
hi guys i got a audi a4 1995 got problem with the rev gauge if i gave it a rev it will keep going up and down and then it will start shaking and then it will just stop only happen if i gave it rev had air senson replace and the lambda sensor any ideas ? thanks
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Old 08-16-2008, 10:30 PM
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Default Re: revs keep going up and down
How much is it fluctuating by?
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Old 08-17-2008, 11:31 AM
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hi i would say lot it goes over and under the 1000 mark
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Old 08-18-2008, 12:11 AM
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Default Re: revs keep going up and down
Possible low fuel pressure or a bad idle control?
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