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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-162 DIAGNOSIS Required Special Tools: • MB991958: Scan tool (MUT-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991910: Main Harness A • MB991658: Test Harness STEP 1. Using scan tool MB991958, check data list item 79: CAUTION To prevent damage to scan tool MB991958, always turn the terminals No. 3, No. 4, No. 5, and No. 6. (6) Set scan tool MB991958 to the data reading mode for item 79, Throttle Position Sensor (main). • Output voltage should be between 0.3 and 0.7 volt when the throttle valve is fully closed with your finger. • Output voltage should be between 4.0 volts or more when the throttle valve is fully open with your finger. (7) 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 − How to Cope with Intermittent Malfunctions . NO : Go to Step 2. STEP 2. Check harness connector B-06 at throttle position YES : Go to Step 3. . Then go to Step 11. AK303804AB MB991910 DATA LINK MB991824 MB991827 AK303818 1 6 5 4 3 2 AB CONNECTOR: B-06 B-06 (B) HARNESS |