I changed coil pack wires and plugs. It still shows misfire on 2&4 cylinder help on 2002 Ford Focus

Any help would be great. Misfire on 2&4 cylinders. I changed coil pack plugs and wires. Still has miss

Asked by for the 2002 Ford Focus
have it ck'd by your mech and look at injectors and compression tested
1 more answer
Have you tested to make sure they are firing? If so what else could cause a miss, Injectors working, compression test, Vacuum leak. Have it tested by a technician with the things you can't do.