Without Consult

DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE (OVERALL)
1. Start engine and warm it up sufficiently.
2. Turn ignition switch "OFF" and wait for at least 3 seconds.
3. Disconnect mass air flow sensor harness connector Then restart and run engine for at least 3 seconds at idle speed.
4. Stop engine and reconnect mass air flow sensor harness connector.
5. Perform Diagnostic Test Mode II (Self-diagnostic results) with Engine Control Module (ECM). Make sure DTC 12 is detected.
6. Erase the DTC 12 by changing from Diagnostic Test Mode to Diagnostic Test Mode
7. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM. Make sure DTC 55 is detected.
8. Start engine again and wait for at least 10 minutes at idle speed. The DTC 76 should be detected at this stage, if a malfunction exists.
9. If it is difficult to start engine at step 8, the fuel injection system has a malfunction.