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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-44 STEP 2. Using scan tool MB991958, check data list item 95: (1) Turn the ignition switch to the "ON" position. 95, Manifold Absolute Pressure Sensor. • When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg). • When altitude is 600 m (1,969 feet), 95 kPa (28.1 in.Hg). • When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 in.Hg). • When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 in.Hg). (3) Start the engine. • When the engine is idling, 16 − 36 kPa (4.7 − 10.6 in.Hg). • When the engine is suddenly revved, manifold absolute pressure varies. (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 3. − Manifold Absolute Pressure Circuit Range/Performance Problem , DTC P0107 − Manifold Absolute Pressure Circuit Low , DTC P0108 − Manifold Absolute Pressure Circuit High Input STEP 3. Using scan tool MB991958, check data list item 25: (1) Start the engine and run at idle. 25, Barometric Pressure Sensor. • When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg). • When altitude is 600 m (1,969 feet), 95 kPa (28.1 in.Hg). • When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 in.Hg). • When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 in.Hg). (3) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 4. − Barometric Pressure Circuit Low Input , DTC P2229 − Barometric Pressure Circuit High Input AK303804AB MB991910 DATA LINK MB991824 MB991827 AK303804AB MB991910 DATA LINK MB991824 MB991827 |