Possible Causes
| Possible Causes |
|---|
| EXHAUST LEAK |
| (K141) O2 1/2 SIGNAL CIRCUIT |
| (K904) O2 RETURN DOWNSTREAM CIRCUIT |
| O2 SENSOR |
Always perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.
| Possible Causes |
|---|
| EXHAUST LEAK |
| (K141) O2 1/2 SIGNAL CIRCUIT |
| (K904) O2 RETURN DOWNSTREAM CIRCUIT |
| O2 SENSOR |
Always perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.