I recently bought a 2005 v6 4.0 ranger with
under 80.000 miles on it and I've put on
about a thousand miles but over the last 3
weeks I've gotten check engine lights starting
with p0302 (cylinder 2 misfire). I replaced the
spark plug, wire, and coil and it ran perfectly
fine. About a week later I get a new badge
saying misfire in cylinder 2 and 6 I don't
remember the code number but I replaced
the coil again and it ran perfectly for another
week. Today I got another code ran it and it's
coming back p0302 again (cylinder 2 misfire)
and p0300 (random misfire). I need help on
what I need to do now wires, coil, and spark
plug are all brand new. Any help would be
appreciated thank you.

 

Try a bottle of InjectorCleaner followed by a fillup with premium gas; I do this once\twice a year to keep injectors from gumming up.
Can also measure cylinder pressures to check for an issue there.
Can also swap Injector2 with another cylinder; see if TroubleCode moves with it to that other cylinder.