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Home >> Infiniti >> 2011 >> G25 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0451 To P1168 - G25 Sedan >> DTC P1078, P1084: EVT Control Position Sensor >> Component Inspection

Component Inspection

  1. EXHAUST VALVE TIMING CONTROL POSITION SENSOR-I
    1. Turn ignition switch OFF.
    2. Disconnect exhaust valve timing control position sensor harness connector.
    3. Loosen the fixing bolt of the sensor.
    4. Remove the sensor. Refer to "EXPLODED VIEW ".
    5. Visually check the sensor for chipping.

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Replace malfunctioning exhaust valve timing control position sensor. Refer to "EXPLODED VIEW ".

      Fig 1: Checking Exhaust Valve Timing Control Position Sensor-I For Chipping
      G04886870Courtesy of NISSAN MOTOR CO., U.S.A.
  2. EXHAUST VALVE TIMING CONTROL POSITION SENSOR-II

    Check resistance exhaust valve timing control position sensor terminals as shown below.

    TERMINALS RESISTANCE REFERENCE CHART

    Terminals Resistance
    1 (+) - 2 (-) Except 0 or ∞ Ω [at 25°C (77°F)]
    1 (+) - 3 (-)
    2 (+) - 3 (-)

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Replace malfunctioning exhaust valve timing control position sensor. Refer to "EXPLODED VIEW ".