
P0171
The condition is both banks run lean through the entire range but bank one fuel trims are slightly higher. Freeze frame has b1 at 25 and b2 at 15 and code sets at idle. This is more a question of theory but would appreciate advice as well. The vehicle has no m... Login to read more. ![]()
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Engine | 3.0 L |
Trans | 6-speed Automatic (Electronic) |
Vehicle Data
2008 BMW 535i 3.0L
Engine | 3.0 L |
Trans | 6-speed Automatic (Electronic) |