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i have a 2002 jaguar s type 8 cyl. 4.0 lt. I read the DTC and it shows misfire on cylinder 4. I replaced the spark plugs and it is still idling rough and still get the DTC P0304 misfired at cyl. 4. Please help me to diagnose further to resolve this .

thanks.

 

Could be coil or an injector.

try switching around the plug wire from cylinder 4 to another cylinder, if the misfire moves to that cylinder, u know to replace the plug wire

Basically, in a 2002 Jaguar,  Exessive oil consuption complaint, the car was burning 1 qt of oil every 30... Trouble codes: 0304 (cyl4 misfire), 0305 (cyl 5 misfire), 0306 (cyl 6 misfire), p1418 (mfr specific secondary air).

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