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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-453 STEP 8. Using scan tool MB991502, check data list item 11: 11, Left Bank Heated Oxygen Sensor (front). • Output voltage should be 0.6 − 1.0 volts when sudden revving. (3) Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the sensor operating properly? YES : Go to Step 9. − Oxygen Sensor Circuit Malfunction (bank 2, sensor 1)( ), DTC P0153 − Oxygen Sensor Circuit Slow Response (bank 2, sensor 1)( STEP 9. Using scan tool MB991502, check data list item 39: 39, Right Bank Heated Oxygen Sensor (front). • Voltage should fluctuate between 0 − 0.4 volts and 0.6 - 1.0 volts while after the engine has been warmed. (3) Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the sensor operating properly? YES : Go to Step 10. STEP 10. Check the EGR system. − EGR System Check ( Q: Is the EGR system normal? YES : Go to Step 11. symptom is eliminated. AC003081 AB 16 PIN MB991502 AC003081 AB 16 PIN MB991502 |