305 code I need to know what to repair

Question

obd11 code 305 reading. I have changed wires and plugs it didn't fix the problem. what do I do next?

Answer 1

P0305 Misfire number 5 cylinder

P0300 Random misfire

P0316 Misfire occured in the first 1,000 engine revolution

You changed sparkplug wires and sparkplugs, Then you need to rule out a mechanical condition, the fuel injector, the ignition coil. What needs to be done is a mechanical inspection this consist of cylinder balance test, and a compression test. or better yet a leak down test