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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (3 Of 4) >> Component/Circuit Diagnosis >> Knock Sensor >> Component Inspection >> VR30DDTT engine
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VR30DDTT engine

  1. CHECK KNOCK SENSOR 
    1. Turn ignition switch OFF.
    2. Disconnect knock sensor harness connector.
    3. Check resistance between knock sensor terminals as per the following.
      NOTE: It is necessary to use an ohmmeter which can measure more than 10 MOhm.

    Terminals

    Condition

    Resistance (kOhm)

    1 and 2

    Temperature

    20 deg. C (68 deg. F)

    532 - 588

    CAUTION: Do not use any knock sensors that have been dropped or physically damaged. Use only new ones.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace malfunctioning knock sensor. Refer to CYLINDER BLOCK : Exploded View .