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P2189 Diagnostic Trouble Code Discussion for March 2014

Fuel Trim System Too Lean At Idle Adaptive (Bank 2)

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Trouble Ticket Help Requests for DTC P2189
Help Request Posted
2009 Porsche Cayenne 3.6L MIL Lamp on VIN: WP1AA29P39
P2189: bank 2 mixture adaption. I have found a vacuum leak at the rear of the valve cover just above where the crankcase vent hose attaches- There is a small hole? i believe a bleed hole or something?? definatly a hole that was designed to be on the valve cover (not broken or drilled)... Has...
March 11, 2014