A code sensor detected that 3rd and 4th spark
plugs were misfiring, and they reccomended that I
replace the ignition coil, so I did and now all spark
plugs are misfiring
Make sure wires didn't get mixed up. And check for loose Grounds and or corroded grounds
Check all plugs and wires, as well their connections. Then repost if you still have a CEL for PO301-4.
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