2002deville2002 Posted July 22, 2012 Report Share Posted July 22, 2012 i am trouble shooting a misfire on my 02 deville 4.6 and need to know if the snap on ethos can tell me exactly which cylinder is misfiring on this car this way i can swap the coil packs and injectors to see if the problem still there. thanks Link to comment Share on other sites More sharing options...
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