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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-171 STEP 10. Check the fuel pressure. Q: Is the fuel pressure normal? YES : Replace the ECM or PCM. Then go to Step 11. STEP 11. Test the OBD-II drive cycle. Procedure 6 − Other Monitor ( ). (2) Check the diagnostic trouble code (DTC). Q: Is the DTC P0154 is output? YES : Retry the troubleshooting. |