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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-773 STEP 3. Check the engine idling state. YES : Go to Step 4. STEP 4. Check the following items. a. Clean the throttle valve area. Refer to (2) After cleaning, confirm that the malfunction symptom is eliminated. Q: Is the malfunction symptom resolved? YES : The check is completed. defective items. a. Broken intake manifold gasket. c. Broken vacuum hose. d. Positive crankcase ventilation valve does not operate. Then confirm that the malfunction symptom is eliminated. STEP 5. Check the idle air control (IAC) motor operation °C (68°F) or below. ° C (68 ° F) or below is also okay. (2) Check the operation sound of the IAC motor can be heard after the ignition is switched to the "ON" position (but • An operation sound is heard. (3) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 6. − Idle Control System RPM Lower Than Expected , DTC P0507 − Idle Control System RPM Higher Than Expected AK300408 1 2 3 4 5 6 CONNECTOR: B-34 AB B-34 (B) HARNESS CONNECTOR: |