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-   -   rpm fluctuates at idle...MAF? (http://986forum.com/forums/boxster-general-discussions/32979-rpm-fluctuates-idle-maf.html)

tuanle16 01-03-2012 09:23 AM

rpm fluctuates at idle...MAF?
so my 02 base occasionally fluctuates at idle. tried cleaning the maf multiple times now. but it doesn't seem to do the trick. do i need to just buy a new maf? or could there be a different issue? no CEL, no performance issues that i can tell. but the rpm fluctuates occasional when i'm at idle at the red light. thoughts?

JAAY 01-03-2012 09:29 AM

Try cleaning your throttle body

ddb 01-03-2012 09:46 AM

I agree with Jaay that a throttle body cleaning may help.

How much fluctuation are you experiencing? Does it coincide with disconnecting the battery by any chance?

thstone 01-03-2012 09:55 AM

Could also be an issue with the idle controller.

landrovered 01-03-2012 01:29 PM

Hunting at idle is a sign of an O2 sensor going out

pk2 01-04-2012 08:37 AM

Hunting at idle often can be a sign of an air intake leak. I'd start there.

Regards, PK

nobby8 01-08-2012 06:31 AM

mine was doing exactly the same thing. Tried cleaning everything, no different. Changed the MAF sensor and its been perfect since then.

btw I bought it second hand from a reputable porsche breaker here in the uk for 75. If it lasts a year it was better than the hundreds that it costs for a new one or cheap chinese copies off ebay

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