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Discussion Starter #1
Just Had New Coil Pack Plugs And Leads, But Still Not Firing On Fourth Cylinder, Anybody Have Any Ideas Cheers.
 

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Discussion Starter #3
completly fine before, and the engine management hasnt come on. been told it could be a sensor, will have to get it checked out by someone in the know, not had any problems like this before and had the car 5 years, trouble is i dont want to spend to much money on it!
 

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i cant work out what sensor would drop 1 cylinder? sounds more like one of the bits you've put on isnt doing its job right. try swapping the lead and plug with one in another cylinder and see what happens. if the problem moves thats the problem.
 
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