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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-143 STEP 6. Using scan tool MB991958, check data list item 79: CAUTION To prevent damage to scan tool MB991958, always turn the terminals No. 1, No. 2, No. 3, and No. 4. (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 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 NO : Replace the PCM. Then go to Step 11. STEP 7. Check harness connector D-135 at PCM for YES : Go to Step 8. Connector Inspection . Then go to Step 11. AK302970 AB MB991911 MB991824 MB991827 AK200947 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 CONNECTOR: D-135 HARNESS CONNECTOR: AB PCM D-135(GR) |