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i have a 2004 dodge ram i replaced the plugs and the coils and it still misfires what do i do

Vehicle: 2004 dodge ram 1500 5.7lt hemi

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P0300 Random misfire

P0302 Misfire number 2 cylinder

This leaves with testing the injector for proper operation and a testing the cylinder with either a compression test or a cylinder leakdown test,

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