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2001 BMW 740i 4.4L MIL Lamp on
Posted to European Driveability on 8/21/2012 13 Replies

I have smoked the system and found 2 leaks one from the breather valve that has the brake booster hose on it and the o-ring for the cam shaft sensor. I replaced both and both long term fuel trims go up past 20. I smoke tested after replacing the valve and the ...

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car Vehicle Data

2001 BMW 740i

VIN WBAGG834X1
Engine4.4 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed

car Vehicle Data

2001 BMW 740i

VIN WBAGG834X1
Engine4.4 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)