Possible Causes
| Possible Causes |
|---|
| EXHAUST LEAK |
| O2 SENSOR 2/2 NOT TIGHTENED OR MOUNTED INCORRECTLY |
| O2 SENSOR 2/2 HARNESS CONNECTOR DAMAGED |
| O2 SENSOR 2/2 |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .