AR:DTC P0171 SYSTEM TOO LEAN (BANK 1)
1. OUTLINE OF DIAGNOSIS
Detect fuel system malfunction by the amount of main feedback control.
Diagnostic method
Fuel system is diagnosed by comparing the target air fuel ratio calculated by
ECM with the actual air fuel ratio
measured by sensor.
2. ENABLE CONDI
Engine oil
For the checking, adding and replacing procedure or other details, refer to “Engine oil” F11-12.
NOTE
The procedure for changing the engine oil and oil filter should be performed by a properly-trained expert. It is recommended that you have this service performed by your