p0301 is a cylinder 1 misfire. Check the plugs and wires for wear, shorting out, etc. Id make sure to pay close attention to cyl 1 if it had that code. Also check all the wiring and connectors for the CKP and CMP sensors. Be sure theres no frayed/broken wires, or oil in the connectors. Also, fwiw, Chrysler products love Champion spark plugs. Use whats specified as the factory plug. Used to fix ALOT of misfires when I worked for a Chrysler/Jeep dealer here in Ft Wayne by just putting the right plugs back in. I never would have thought a brand of plug would have made such a difference had I not seen it so many times myself
Where specifically should I be inspecting the wiring harness for faults? I still have p1391 after replacing both sensors with no dice...this is getting depressing