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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-247 STEP 6. Using scan tool MB991502, check data list item 44: CAUTION To prevent damage to scan tool MB991502, always turn the 44, Ignition Coils and Ignition Power Transistor. • Ignition timing with the knock sensor connector (4) Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the ignition timing changes normally? YES : The inspection is complete. AKX01177 16 PIN MB991502 AB |