Hello all I am pulling my hair out trying to solve a misfire on my wifes explorer. Its a 2006 Limited 4.6 V8. I am getting code p0303 for a cyl 3 misfire. So I swapped coil packs 2&3 cleared the codes. Well the cyl 3 misfire again. I figured it has 130000 miles the plugs are probably bad. So at 13 bucks a piece I bought a set of plugs for it. Still I am getting cyl 3 misfire. So now I swapped injectors 1&3 and cleared codes. I still end up with this cylinder 3 misfire. I am going to borrow a noid light and check the harness now. Has anyone else ran into this issue? Thanks for any help Mike Edit: Also maybe Im numbering the engine cylinders wrong. Is it the same as all my 302 and 351s? 1234 on pass and 5678 on driver side?