List of reasons it can come on.
To many to list, have the system scanned for the fault code or codes.
SOURCE: 2001 Jaguar XJ8 Idles rough while sitting
o2 sensors often cause a rough idle at stand still. Previously my xj8 had crank case ventilation (pvc valve essentially) issues that caused the check engine w/ restricted performance. I noticed a severe drop in gas mileage as well. Jaguar dealer fixed my problems in a few hours and it was surprisingly cheap. Its worth taking it to advanced or auto zone to see what the computer says. Then decide if you want to shell out for a dealer fix or if you can tackle it yourself. BTW, just to justify myself this is my third jaguar. I have a '94 xj6 with a chevy 350 inside it, previously owned a 95 XJ6 and currently have the xj8. They are wonderful cars if you can put up with their rough times.
SOURCE: I have a 1999 Jaguar XJ8, there is a Check Engine
the gas gauge is not related, that would be a defective gas gauge sending unit in the gas tank, the check engine light indicates that one of around 200 poss faults has occured in the electronic engine controls, you will need to have the OBD 2 engine control system tested for the fualt code that is stored when the light is turned on.
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SOURCE: 1994 Mercury Grand Marquis Check Engine Light Code 332
its the tube going from the egr valve to your exhaust it have carbon build up and you either have to replace it or get a metal coat hanger and clean it out.
SOURCE: 99 jaguar xj8 stability control failure, abs light on
Disconnect the multi plug behind the left headlamp and also all plug connectors on abs sensors behind discs and spray with wd 40, Shazoom all lights go and problem solved.
SOURCE: ''Restricted Performance'' message on 2004 Jaguar XJ8
i have problem jaguar x type 2004 when many time motor is start the ligth amber turn on and massege engine fault problem.next the engine do not acceleration
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