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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-645 STEP 3. Using scan tool MB991958, check data list item 11: (1) Start the engine and run at idle. 11, Heated Oxygen Sensor Bank 2, Sensor 1 (left front). • Warming up the engine. When the engine is revved, the output voltage should be 0.6 to 1.0 volt. (3) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 4. − Heated Oxygen Sensor Circuit (Bank 2, Sensor 1) − Heated Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor , DTC P0152 − Heated Oxygen Sensor Circuit High Voltage (Bank 2, Sensor 1) DTC P0153 − Heated Oxygen Sensor Circuit Slow Response (Bank 2, Sensor 1) − Heated Oxygen Sensor Circuit No Activity Detected STEP 4. Using scan tool MB991958, check data list item 11: (1) Start the engine and run at idle. 11, Heated Oxygen Sensor Bank 2, Sensor 1 (left front). (3) Keep the engine speed at 2,000 r/min. • 0 − 0.4 and 0.6 − 1.0 volt should alternate 15 times or more within 10 seconds. (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 5. Then go to Step 7. AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 |