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jks540i · 4th June 2008, 06:29

Any unmetered air entering the engine can fool the MAF's and cause the car to run rough. That's why it'll run like crap if the oil cap is loose.

4th June 2008, 06:29	#12 (permalink)
jks540i Member, Sport: Off DSC: On (>50 posts) Join Date: Oct 2007 Location: Newton, MA USA Posts: 52 Thanks: 1 Thanked 0 Times in 0 Posts	Any unmetered air entering the engine can fool the MAF's and cause the car to run rough. That's why it'll run like crap if the oil cap is loose.