View Single Post
Old 08-19-2012, 08:55 PM   #4
Topless
Track rat
 
Topless's Avatar
 
Join Date: Nov 2006
Location: Southern ID
Posts: 3,701
Garage
Quote:
Originally Posted by coolbreeze551 View Post
I will try a new gauge sensor and go from there. It is a 2001 base with 155k km's. I have recently added the sensor itself along with idle control valve (used), 74 mm TB with IPD plenum.
A small intake air leak as a result of your recent TB/Plenum work would explain the idle stumble at high vacuum. Retrace your steps.
__________________
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Topless is offline   Reply With Quote