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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-723 DIAGNOSIS STEP 1. Check the trouble symptoms. • The malfunction indicator lamp (SERVICE ENGINE SOON or Check Engine Lamp) should illuminate imme- (2) Turn the ignition switch to the "LOCK" (OFF) position. SOON or Check Engine Lamp) illuminate? Refer to GROUP 00, How to Use − How to Cope with Intermittent Malfunctions P.00-15 . NO : Replace the combination meter. Inspection procedure 3: The malfunction indicator lamp (SERVICE ENGINE SOON or check engine . COMMENT • In cases such as the above, the cause is proba- bly that the ECM is detecting a problem in a sen- . TROUBLESHOOTING HINTS (The most • Shorted malfunction indicator lamp (SERVICE ENGINE SOON or Check Engine Lamp) circuit. DIAGNOSIS Required Special Tools: • Scan Tool (M.U.T.-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991910: Main Harness A |