sputtering and possible misfire


first check for power at the coils
check spark at plugs and also there gap
oh and yes check the knock sensor see if it is connected
- should be top right of engine bay (by oil pressure switch and ignition coil) i beleave

check compresion on all cylinders

if all else fails since you have OBDII programing hook up a scanner and it should give you
at least enough info to fix it

hope this will help
 
yup it should give you something ... what kind do you have tho
 
seafoam is good stuff. didn't think it was that good.

so it dont run rough or anything anymore? smooth as silk?
 

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