Ignition Timing
WARNING: This page is about a different car, the 1990 Jaguar XJ6, 1989 Jaguar XJ6, and 1988 Jaguar XJ6. However, it is still accessible from the selected car via links, so may be relevant.
Ignition timing is electronically controlled by the ECU from information supplied by the airflow meter and crankshaft sensor. Ignition timing adjustment is not necessary.