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Home >> Infiniti >> 2008 >> EX35 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0451 To P1212 >> P0506 ISC System >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK INTAKE AIR LEAK
    1. Start engine and let it idle.
    2. Listen for an intake air leak after the mass air flow sensor.

    Is intake air leak detected? 

    YES: Discover air leak location and repair.

    NO: GO TO 2.

  2. REPLACE ECM
    1. Stop engine.
    2. Replace ECM.
    3. Go to "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : SPECIAL REPAIR REQUIREMENT ".

    INSPECTION END

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