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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-153 STEP 12. Using scan tool MB991958, check data list item 8: 8, Manifold Absolute Pressure Sensor. • When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg). in.Hg). • When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 in.Hg). (3) Start the engine. • When the engine is idling, 31 − 45 kPa (9.1 − 13.3 in.Hg). pressure varies. (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use Cope with Intermittent Malfunctions . NO : Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, ID Code or GROUP 42C, ID Codes Registration Judgment Table <Vehicles with WCM> STEP 13. Test the OBD-II drive cycle. Diagnostic Function − OBD-II Drive Cycle − Pattern 6 (2) Check the diagnostic trouble code (DTC). YES : Retry the troubleshooting. |