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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-411 • The ECM (terminal 13, 26) <M/T> or PCM TROUBLESHOOTING HINTS (The most likely • Malfunction of the ignition switch. • Malfunction of the MFI relay. • Improper connector contact, open circuit or short- • Disconnected ECM <M/T> or PCM <A/T> ground • Malfunction of the ECM <M/T> or PCM <A/T>. DIAGNOSIS STEP 1. Check connector A-21X at MFI relay for damage. YES : Go to Step 2. Connector Inspection ( ). Then confirm that the malfunction symptom is eliminated. AK000226 AK000226AB CONNECTOR : A-21X MFI RELAY |