i have changed plugs, cap rotor, distributor, wires, egr, for p300-p306 on 2.5l, still having problems but i get code read from obd i get multiple miss fire all cylinders but when i count flashes and pauses i get 5, 11, 2, 10 times
engine light flashed first five times then flashed elven times only on highway on 2000 Chrysler Sebring
i would start with a compression test. if you replaced all the secondary parts, then you need to look at the injectors, valves and such. you need some help here from a shop to verify and give you a bid.