Question about 1995 Jaguar XJ6

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Tick over problem

Sometimes engine is ticking over at 3000 revs next its coughing and spluttering have replaced the stepper motor idle valve and the air meter and ecu when i had it plugged into the computer it came up with code P1775 car when playing up also has a gearbox fault light on? the car is a p reg 4 litre soveriegn x 300 car does tick over perfectly sometimes please help

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Sounds like it could be a bad EGR valve, the trans fault codes of p1775 is nothing really, it could even be the fact that you are putting the car in gear at 3,000 revs.
If this is an intermittant problem then it goes right back to the egr valve. They clog and stick and will cause bad/rough idle issues especially on start up and also will cause spiratic idle problems.
JPTCAT

Posted on Feb 17, 2009

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