2005 BMW X3 2.5i 2.5L MIL Lamp on
This one started as an easy fix. Codes P0171 and P0174 both banks running lean. We checked the intake boot and found several cracks. We sprayed carb cleaner and watched the trims go from + to -. After replacing the boot the total fuel trims were still indi...
FIX posted 3/29/2018
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Vehicle Data2005 BMW X3 2.5i
Trouble Codes
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Vehicle Data
2005 BMW X3 2.5i
VIN | WBXPA73475 |
Engine | 2.5 L / 6 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |