P2302 code changed plugs and coils, what else could be the issue? on 2004 Jeep Liberty

1 is not firing at all what else could the problem be?

Asked by for the 2004 Jeep Liberty
you poss have an inj issue or wiring to it get a diag and est to save tme and $
1 more answer
possible faulty fuel injector....but i would perform a compression check to be sure the engine is in good condition.