Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jaguar >> 1997 >> XK8 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Diagnosis & Testing >> Pinpoint Test G: P0157, P0158 >> G2: Check For O2 Sensor Failure

G2: Check For O2 Sensor Failure

  1. Run the engine for a period to warm the sensor and then maintain a steady speed of approximately 2500 rpm.
  2. Measure the voltage between EM024/001 and EM024/002.
    Fig 1: Measuring Voltage Between EM024/001 And EM024/002
    G04355526Courtesy of JAGUAR CARS, INC.
    • Is the voltage between 600mV and 1.0 Volt? 

    Yes  : GO to G3 

    No  : Renew O2 sensor and reconnect plug(s)

    GO to G6