LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jaguar >> 2002 >> XJR Base >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Electronic Engine Controls >> General Procedures >> Engine Control Module (ECM) Adaptation >> Drive Cycle for 40 thou leak test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Drive Cycle for 40 thou leak test

  1. Make sure the 'conditions for adaptation' detailed at the start of this section are met.
    • Avoiding high engine loads, drive the vehicle steadily between 48 and 89 kph (30 and 55 mph) for 15 to 20 minutes after starting the engine. (Depending on the amount of fuel vapor generated, the test may take longer than this).
    • Where possible, avoid body roll to minimize fuel movement.
    • If the scan tool being used is able to read TIDs, check TID 08 in mode 6. If the test has not completed, this TID will display '0'. Any other value indicates that the test has successfully completed.
    • If the test has not completed, the drive cycle must be repeated.
    • If the scan tool being used is not able to read TIDs, the only way to confirm that the test has run is to check for P1111 after running the 20 thou test, where applicable.
scientia non olet · About LEMON Manuals