|
|
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-159 STEP 1. Using scan tool MB991958, check data list item 8: CAUTION To prevent damage to scan tool MB991958, always turn the 8, 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). (4) 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. (5) 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 − How to Cope with Intermittent Malfunctions P.00-15 . NO : Go to Step 2. STEP 2. Measure the ground voltage at manifold absolute backprobing. • Voltage should be 0.5 volt or less. (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 6. STEP 3. Check harness connector B-105 at the manifold YES : Go to Step 4. Connector Inspection P.00E-2 . Then go to Step 7. AK700568AB MB991824 MB991827 MB991910 Data link 3 2 1 AK203038 B-105 harness AL |