View Single Post
Old 11-20-2012, 12:19 PM   #4
goingincircles
Registered User
 
Join Date: Feb 2012
Location: Los Angeles, CA
Posts: 5
My Ride: 1999 328I
The secondary air pump valve will open only when the engine is cold check the vacuum line going to the valve, u should feel some suction only on cold starts.
goingincircles is offline   Reply With Quote