Possible Causes
| Possible Causes |
|---|
| EXHAUST LEAK |
| O2 SENSOR 1/2 SIGNAL CIRCUIT |
| O2 SENSOR 1/2 RETURN CIRCUIT |
| O2 SENSOR |
s perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to STANDARD PROCEDURE .
| Possible Causes |
|---|
| EXHAUST LEAK |
| O2 SENSOR 1/2 SIGNAL CIRCUIT |
| O2 SENSOR 1/2 RETURN CIRCUIT |
| O2 SENSOR |
s perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to STANDARD PROCEDURE .