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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-93 STEP 13. Using scan tool MB991502, check data list item CAUTION To prevent damage to scan tool MB991502, always turn the 14, Throttle Position Sensor. • With the throttle valve in the idle position, voltage should • With the throttle valve in the full-open position, voltage (4) Turn the ignition switch to the " LOCK " (OFF) position. Q: Is the sensor operating properly? YES : It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use Troubleshooting/ ). NO : Replace the PCM. Then go to Step 14. STEP 14. Test the OBD-II drive cycle. , Procedure 6 − Other Monitor. (2) Check the diagnostic trouble code (DTC). Q: Is the DTC P0121 is output? YES : Retry the troubleshooting. AC003081 AB 16 PIN MB991502 |