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1989 Jaguar XJS Repair Question


Topics covered: Fuel pressure, Catalytic converter, Engine.
Mileage: No information provided.

Asked on November 27, 2007

1989 Jaquar XJS 12Cyclinder

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.
Avatar Asked by Lillie

Answer

Replied on November 27, 2007

Check the fuel return line to the tank for damage!

Tiny Answered by merlin2021 (expert)
18,145 answers provided
Replied on November 28, 2007

Check your catalytic converters for either a melted or broken bed condition.

Tiny Answered by merlin2021 (expert)
18,145 answers provided