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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-413 STEP 4. Using scan tool MB991958, check data list item 13: (1) Turn the ignition switch to the "ON" position. 13, Intake Air Temperature Sensor. • The intake air temperature and temperature shown with the scan tool should approximately match. (3) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 5. − Intake Air Temperature Circuit Range/Performance Problem − Intake Air Temperature Circuit Low Input − Intake Air Temperature Circuit High Input . STEP 5. Using scan tool MB991958, check data list item 21: (1) Turn the ignition switch to the "ON" position. 21, Engine Coolant Temperature Sensor. • The engine coolant temperature and temperature shown with the scan tool should approximately match. (3) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 6. − Engine Coolant Temperature Circuit Range/Performance Problem , DTC P0117 − Engine Coolant Temperature Circuit Low Input , DTC P0118 − Engine Coolant Temperature Circuit High Input AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 |