So i have a p0300 code misfire and cannot figure it out my car is also hard starting quite often any ideas ...here are the things i have replaced, o2's, cap and rotor' opti, plugs and wires...and about to do the coil wire saturday?????

 

hows ur icm and did you replace the cap rotor the right way how bout cross wires or broken plugs are the o2's plugged in lol but hey ive seen and read way to much

 

Not sure about the icm have not checked it, opti came fully assemled and is installed correctly, plugs and wires are routed good, and o'2s are plugged in

 

id check the icm i bought mine a couple of months ago and 2 weeks ago i took my coil off to put on a better one i let it sit off the car for 2 days put it back on sun and it had went bad