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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-471 STEP 1. Using scan tool MB991958, check data list item 22: CAUTION To prevent damage to scan tool MB991958, always turn the 22, Crankshaft Position Sensor. • The tachometer and engine speed indicated on the scan tool should much. (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : It can be assumed that this malfunction is intermittent. Refer to IN GROUP 00, How to Use NO : Go to Step 2. AK302970 AB MB991911 MB991824 MB991827 |