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Help, ruff idle

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Old Sep 27, 2013 | 06:36 PM
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goodguys282
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Default Help, ruff idle
HELP! 2002 Corvette 48,000 miles ruff idle climbs to about 1100 rpms then goes down to almost stall, back up, back down. And not just when it's cold, when its warm too.
No codes no check engine.
What do you think?
Thanks in advance. Frank
I also posted in tech.
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Old Sep 27, 2013 | 06:39 PM
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Any mods done to the car? MAF clean?
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Old Sep 27, 2013 | 06:46 PM
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MAF is clean.
Halltech cold air, dyno tune about a year ago
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Old Sep 27, 2013 | 06:47 PM
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Could the MAF just be no good?
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Old Sep 27, 2013 | 06:48 PM
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No intake leaks anywhere?
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Old Sep 27, 2013 | 06:50 PM
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I don't here any sucking sounds,but how would I check?
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