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s54 missfire


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I having some trouble with a s54b32. 

Engine missfire betwen 5500rpm to 6000rpm. We have changed sparkplugs and ignition coils but no difference, it is possible to to reduce the missfires a bit if we go wery lean. I have also tried to play around with different ignition settings like dwell time etc.. but no difference

missfire.pclr missfirelog.llg

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