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2001 BMW 740i 4.4L MIL Lamp on
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 ...
FIX posted 10/3/2012
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Related Documents & Media | VIN | WBAGG834X1 |
| Engine | 4.4 L / 8 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed
Vehicle Data
2001 BMW 740i
| VIN | WBAGG834X1 |
| Engine | 4.4 L / 8 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video