Vauxhall Workshop Service and Repair Manuals

Trouble Code

Information Sensor

Cause of Fault

Remedy in

F0: DATA LIST

No.

Trouble Code Storage when

121

02 SENSOR 2 LEAN EXHAUST

46, 48, 52, 54, 56

·   Oxygen sensor integrator (internal control unit value for evaluation of oxygen sensor regulation) has exceeded upper limit of 1.2

     (mixture constantly too lean)

Thereafter for at least 15 s:

·   Coolant temperature lower than 107° C / 225° F

·   Intake air temperature lower than 30° C / 86° F

·   Trouble codes 73 and 74 not recognized

·   Engine load signal for longer than

    X 25 XE: 0.8 ms

    X 30 XE: 0.9 ms