Originally Posted by
E34Dave
So I am currently having an issue with my car idling when the charge pipe is connected. When I disconnect the cold side by the MAF, the car idles and drives fine. Once it's connected and is using the turbo, the car won't idle, runs really rich (talking 8-11 afr). All my vacuum lines are fine and doesn't have any problems when not utilizing the turbo.
Setup info:
1994 525i, M50tuB25
Holset HX35
RSI manifold (wastegate blocked off, using holset internal)
5lbs of boost
Cometic, ARP studs
2.5" intercooler piping
HKS SSQV BOV
Stock MAF, injectors, etc.
Stock ECU
Can anyone point me in the right direction of what the problem might be? Things to test, etc. Can provide more info if need be.
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