Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
Is this with the battery charger conneted to the car and charging? Or after you have charged the battery, removed the charger and turn the key on?
most battery chargers release a small amount of AC voltage unless you spend over $500.00 bucks. Causing all types of problems. I would recomend removing the negative cable charge your battery then reconnect and start. The 1994 jag XJS and XJ6 are very vulnerable to ECU damage if the vehicle sees AC voltage. I know it sounds strang but try it and let me know. I hope after you get it started the enging idles nomally and not at 2000RPM. As for the FF47 you cant trust that as being a true falt at this time.