Thread: Bad MAF?
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#2: 01-23-2011, 01:23 PM
 
 John M
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Title: Burning Monkey
Location: Milledgeville, GA
Car: Formerly 05 LGT w/ FP Green
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If you unplug the MAF and the car runs well, it means there's a leak. There's a small chance that the MAF sensor itself is bad but the odds are 99.99% that it's a leak.

Since it affects idle I'll put my money on a vacuum hose. Check the notorious T under the intercooler and all the other vac hoses you can find. You may be able to hear the leak while the engine idles.