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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-511 CIRCUIT OPERATION • The battery positive voltage is applied on the • When the ECM <M/T> or PCM <A/T> turns the • When the ignition power transistor turns on, the TROUBLESHOOTING HINTS (The most likely • Malfunction of the ignition coil. • Malfunction of the ignition power transistor. • Improper connector contact, open circuit or short- • Malfunction of the ECM <M/T> or PCM <A/T>. AK000217AB AK000217 CONNECTOR : B-22 AK000315 CONNECTOR:C-101 AC AK000225 C-52 C-55 C-51 C-58 CONNECTORS:C-51,C-58<M/T> ECM<M/T> PCM<A/T> AH AK000345AE CONNECTOR:C-89 AK000219 CONNECTOR:C-87 AC AK000312AJ CONNECTOR:C-07 |