P0300 code random misfire on 1998 Chevrolet S10

I change out wires,cap&rotor,pvc,fuel filter,plugs, check vaccumm,air filter


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1 answer
Have you tested your ignition coil? I hope this link works, it explains how to test the coil by check the resistance values
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528008ee03