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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-924 STEP 3. Check the trouble symptoms. Diagnostic Function − OBD-II Drive Cycle − Procedure 6 − (2) Check the diagnostic trouble code (DTC). YES : Replace the PCM. Then go to Step 6. Refer to GROUP 00, How to Use − How to Cope with Intermittent Malfunctions . STEP 4. Check the fuel level sensor (sub). − Combination Meters Assembly and Vehicle Speed Sensor − On-Vehicle Service − Fuel Level Sen- sor Check . Q: Is the fuel level sensor (sub) normal? YES : Go to Step 5. STEP 5. Check the trouble symptoms. Diagnostic Function − OBD-II Drive Cycle − Procedure 6 − (2) Check the diagnostic trouble code (DTC). YES : Replace the PCM. Then go to Step 6. Refer to GROUP 00, How to Use − How to Cope with Intermittent Malfunctions . STEP 6. Test the OBD-II drive cycle. Diagnostic Function − OBD-II Drive Cycle − Procedure 6 − (2) Check the diagnostic trouble code (DTC). YES : Retry the troubleshooting. |