FixVault

B7: Check For O2 Sensor Failure

  1. With the conditions held as in B6, run the engine at 1500 rpm for approximately 2 minutes
    Fig 1: Checking For O2 Sensor Failure (With Conditions Held as B6)
    G04355454Courtesy of JAGUAR CARS, INC.
    • Does the displayed voltage drop below 400mV and rise above 500 mV, cycling approximately every 4 seconds? 

    Yes  : GO to B9 

    No  : Renew O2 sensor, reconnect plug(s)

    GO to B8