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check engine light code misfire cyl 4. I have changed the plugs & coil wire. on 2004 Hyundai Sonata

could it be a weak coil. The copil is on cyl 4 but I think it serves cyl 2 also.

Asked by for the 2004 Hyundai Sonata
yes poss coil but ck electrical signal to it 1st
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yes poss coil but ck electrical signal to it 1st
IF YOU CHANGE THE PLUG AND WIRE THE NEXT STEP WOULD BE THE COIL. YES THE COIL IS #2 AND #4
It wAS THE COIL