Question about 1995 Jaguar XJ6
If the car is left idling .. it will cut out after a few minutes .. also if the trottle is moved for higher revs very quickly it will cut out .. new spark plugs have been fitted .. looking at the crank shaft output at the moment .. I am using an oscilloscope so I can see the signal coming out of the sensor .. at 800 rpm I get approx. 7 volts peak to peak .. I think this might be too low .. also I think the output is getting smaller as the engine heats up .. output of sensor is proportional to rpm .. so if cutting out for some other reason the output of the sensor will reduce .. and I may be on the wrong track ..
Appreciate any help ..
On the wrong track on this one ,,,reckon its a problem with a fuel sensor but not sure check air filter hasnt collapsed in on its self and its blocking off the air ,or one case scenario i had once was a plastic shopping bag in the air intake where it draws in air behind the headlight ,tickover was ok at first then lumpy and slowed down and engine wouldnt rev quick but it would do if revved slowly and the tell tale was the black smoke ,rich mixture but i will be honest it had me going and took nearly an hour to work it out
Posted on Nov 04, 2008
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