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Home >> Jaguar >> 1997 >> XK8 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Diagnosis & Testing >> Pinpoint Test C: P0137, P0138 >> C3: Check For O2 Sensor Failure

C3: Check For O2 Sensor Failure

  1. With the conditions held as C2, suddenly decelerate to idle
    Fig 1: Checking For O2 Sensor Failure (With Conditions Held as C2)
    G04355466Courtesy of JAGUAR CARS, INC.
    • Has the voltage dropped to 400mV or less ? 

    Yes  : GO to C4 

    No  : Renew O2 sensor and reconnect plug(s)

    GO to C6