Ok, heres the deal.
I've just fitted a gates timing belt kit and nevo pulley. (note: this problem was around before, just not as noticeable).
When the car is cold, it will boost to 11 psi. (7 before nevo).
Once its been running for 10 mins (operating temp reached), it drops to 5 psi (2-3 before pulley)
It also blows black (fuel) smoke on hard acceleration.
It could require a tune (factory ecu), but when cold it runs clean as.
I was going through my wiring harness last night, and found what looks to be a o2 sensor connector.
This was not attached to anything. but ran into the main harness.
The engine did have aftermarket managment before (ems 4424), it could be left over.
QUESTION :
Does the factory aw11 (4agze) run a o2 sensor in the exhaust?
Could this be why it is overfueling when warm?
Is this the reason for my missing boost?
Cheers,
Phil
