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P2189 Diagnostic Trouble Code Discussion for May 2010

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

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Trouble Ticket Help Requests for DTC P2189
Help Request Posted
2002 BMW 745Li 4.4L MIL Lamp on VIN: 1N4AL11D33
P2189: system lean bank 2. I can not find much repair info on this vehicle.It would run like crap cold. I found the ECT sensor reading cold at -40 so I replaced the thermostat/sensor assembly.It runs good now but the codes return in 2 drive cycles. I have smoke checked the intake for va...
May 13, 2010