My dash comes up with CATS SYSTEM FAULT plus the amber light is on.

Take the car to a mechanic before you get hurt!

The light and the word stop should be sending you a clear message . The engine hard starting and sluggish is also sending a message and if you do not heed the message and have the fault codes read and the problem fixed then the next message may be replace the engine or gear box . The light is there --not to be an annoyance ---but to inform you that something drastic is going wrong and it needs urgent attention.

probally be a good idea to have a local shop run a fuel system check to eliminate alot of wasted time or money. its well worth the time to have it properly checked by a trained mechanic. alot of engine problems the computer picks up wont be noticed at first and can lead to expensive repairs

I don't know why you got shuttled to me. I'm sorry, but I can't help you with this problem. Re-post it, and ask for a Jag expert.

what is the reason why my vw passattdi wont start when the amber warning lights display and abs light is the same ater an hour the car starts ok

Not really sure how i can help you with this , do you mean reset the Service Engine Soon light on the dash? if that is the case you will need a Code Reader and reset it that way.

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

This sounds like a gearbox issue. Take it to a garage with diagnostic equipment and get the fault codes read.

Rob

The gentleman above gave you the correct starting point. There are red and amber lights. Amber usually indicates a problem with the engine electronics or emissions system. Red lights are related to charging or alternator problems and engine overheating. If a light comes on you need to check the related system before you wind up disabled on the side of the highway.