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Old 11-29-2012, 06:44 PM   #3
E30Gelardi
Registered User
 
Join Date: Apr 2012
Location: Ny
Posts: 11
My Ride: E30
Could it be a Vanos issue causing your timing to be off?

Did you smoke test the intake system for leaks to ensure no vacuum leak.

What about a slight exhaust leak tricking the o2 sensors?
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