I have a 2002 Chrysler Voyager 2.4 liter.
I am getting codes of P0442,P0455 AND P0301.
It has been running rough and missing out. I know what the codes translate to but the translations are vague.
I have changed the plug wires and the plugs. I changed the temp sensor.
I have crawled all over the van looking for loose wires or vacuum leaks
but i can`t find the problem. I am hoping that there is an easy fix to this problem since i do my own maintenance.
Thank you in advance for any suggestions.

 

compression test?

P0442 nothing to do with misfire: it's evap problem with a medium leak

P0455 nothing to do with misfire: it's evap with large leak (gas cap)

p0301 misfire #1 which is where your problem lies. could be compression (rings, valves) could be a worn cam lobe, could be bad injector and much more