P0171

Lambda Control Adaption Exceeds Upper Limit Bank 1 - Too Lean

P0171 - Lambda control adaption exceeds lower limit bank 1.: Last occurrence - maximum signal

Possible causes:
1. Fuel system leak.
2. Injector leak.
3. Fuel pressure regulation (3.5 Bar Maximum).
4. Fuel pump.

1. Fuel system leak.
No detail available for this fault

2. Injector leak.
No detail available for this fault

3. Fuel pressure regulation (3.5 Bar Maximum).
No detail available for this fault

4. Fuel pump.
No detail available for this fault