Table 2, Trouble Codes
| 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