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Jaguar XJR 1995 misfire

Tiny
PILLY
  • MEMBER
  • 1995 JAGUAR XJ8
Hi I have a misfire on my Jag with no fault codes I have changed the coils, cleaned Maf sensor, changed plugs, renewed crank sensor and the lambda sensor's are only 1 year old, any ideas would be helpfull

All compressions at 10 bar and no coolant loss
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Wednesday, October 10th, 2007 AT 7:29 AM

1 Reply

Tiny
FSTRANGER302
  • MECHANIC
  • 117 POSTS
Hello, have you checked the fuel injectors on the fuel rail. Unplug one injector at a time and see if the miss stays the same or gets worse. You should be able to find the bad injector if there is one. It sounds like you have a injector problem. Another possible problem could be a valve problem. If you have a vacumn guage find a vacum source, and install it it should be steady, and not flucating.
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Friday, November 16th, 2007 AT 6:40 PM

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