1989 JAQUAR XJS 12CYCLINDER

  • Tiny
  • Lillie
  • 1989 Jaguar XJS

73,000 miles
Car will not excelerate and it cuts off when it reaches operating temperture. The fuel pressure is too high also. I've changed several parts, the engine computer, fuel pressure regulators, throttle position switch, spark plugs and wires, rotor button, throttle switch and it still doing the same thing. What do I do to correct this problem? I will greatly appreciate some answers I have tried everything.

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Tuesday, November 27th, 2007 AT 3:50 PM

2 Replies

  • Tiny
  • merlin2021
  • Expert
  • 17,587 posts

Check the fuel return line to the tank for damage!

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Tuesday, November 27th, 2007 AT 5:14 PM
  • Tiny
  • merlin2021
  • Expert
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Check your catalytic converters for either a melted or broken bed condition.

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Wednesday, November 28th, 2007 AT 2:50 PM

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