Rough idle with cylinder misfire. Advice needed
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Rough idle with cylinder misfire. Advice needed
Hey guys. Jaguar vdp with 94k miles on it. History of car is at 65k replaced upper timing chain tensioners, valve cover gaskets, spark plugs and seals, and fuel filter. All repairs done by a jaguar dealer.
Car runs smooth, but at red lights there is a small shake. Finally got a check engine code today and got a p0302. 2nd cylinder misfire. Also got a p1642 and p1316.
I am thinking i want my mechanic to check the ignition coil and move it and see if the misfire move with it. Also thinking that if the misfire doesnt move then it is not the ignition coil and probably an issue with the fuel injectors?
Or even a vaccuum leak?
Just would like advice on what i should have my mechanic do to save me on the labor. Thanks
Car runs smooth, but at red lights there is a small shake. Finally got a check engine code today and got a p0302. 2nd cylinder misfire. Also got a p1642 and p1316.
I am thinking i want my mechanic to check the ignition coil and move it and see if the misfire move with it. Also thinking that if the misfire doesnt move then it is not the ignition coil and probably an issue with the fuel injectors?
Or even a vaccuum leak?
Just would like advice on what i should have my mechanic do to save me on the labor. Thanks
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battery replaced in february 2009 at approx 69k miles? wondering now if i did have one code cleared a while back for low battery charge.
also think the p1642 has to do with my faulty abs module and the p1316 Fuel delivery pressure (low / high)
Fuel injector(s) restricted / leaking
Fuel injector(s) continuously open
which probably is due to the misfire..
my mechanicpulled 2 plugs and said there was some oil on them as well...just wondering where i should start on this problem as it can be so many things and i have read about people replacing coil after coil and still getting the misfire.
also think the p1642 has to do with my faulty abs module and the p1316 Fuel delivery pressure (low / high)
Fuel injector(s) restricted / leaking
Fuel injector(s) continuously open
which probably is due to the misfire..
my mechanicpulled 2 plugs and said there was some oil on them as well...just wondering where i should start on this problem as it can be so many things and i have read about people replacing coil after coil and still getting the misfire.
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so should i start with changing all 8 spark plug boss seals and check for a bad plug as well? and once that is done check if the problem still exists move on and check the coils? and if the coils are okay move to the fuel injectors?
and should i have them clean my maf and throttle body as well?
lastly, would i already need new valve cover gaskets if it has been 29k miles since they were replaced? thanks so much
and should i have them clean my maf and throttle body as well?
lastly, would i already need new valve cover gaskets if it has been 29k miles since they were replaced? thanks so much
#10
oh and which one of these 3 should i get?
02 2002 Jaguar XJ8 Spark Plug Seal - Engine Mechanical - APA/URO Parts, Eurospare, Original Equipment - PartsGeek
02 2002 Jaguar XJ8 Spark Plug Seal - Engine Mechanical - APA/URO Parts, Eurospare, Original Equipment - PartsGeek
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The following 2 users liked this post by theusualsuspect:
jimlombardi (10-13-2012),
WaterDragon (10-13-2012)
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