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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-852 DIAGNOSIS Required Special Tools • MB991958: Scan tool (MUT-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991910: Main Harness A STEP 1. Using scan tool MB991958, read the diagnostic CAUTION To prevent damage to scan tool MB991958, always turn the YES : Refer to Diagnostic Trouble Code Chart NO : Go to Step 2. STEP 2. Check the intake system vacuum leak. YES : Repair or replace it. Then go to Step 4. STEP 3. Replace the throttle body assembly. YES : Replace the PCM. Then go to Step 4. AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 |