surging idle

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Nov 16, 2007 | 12:40 PM

SSoofast

Thread Starter

Staging Lane

Joined: Aug 2002

Posts: 86

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From: Raleigh,NC

surging idle

I,m having surging idle problems.When i come to a stop idle will surge to 2000rpms and slowly settle to 1000 in about 15 sec. I have Efilive and the only thing i can see is timing is dropping to 8-10 degrees at .08 and 800-1000 rpms even though the timing table is at 22 degrees, What could be pulling my timing?I have replaced IAC sensor and TP sensor and no change.

Nov 16, 2007 | 12:58 PM

Frost

FormerVendor

iTrader: (45)

Joined: Jul 2005

Posts: 5,913

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From: Richmond VA

If you are as stock as your sig, I'd guess an air leak...

Nov 16, 2007 | 12:58 PM

darom

On The Tree

iTrader: (2)

Joined: Mar 2005

Posts: 183

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From: Bakersfield, CA

Do a search here on 'bucking' which is closely associated with the surging problem. A lot of ideas you can try esp. since you got your own tuning software.