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Home >> Jaguar >> 1997 >> XK8 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Diagnosis & Testing >> Pinpoint Test G: P0157, P0158 >> G3: Check For O2 Sensor Failure

G3: Check For O2 Sensor Failure

  1. With the conditions held as G2, suddenly decelerate to idle
    Fig 1: Checking For O2 Sensor Failure (With Conditions Held as G2)
    G04355527Courtesy of JAGUAR CARS, INC.
    • Has the voltage dropped to 400mV or less ? 

    Yes  : GO to G4 

    No  : Renew O2 sensor and reconnect plug(s)

    GO to G6