mp3 missfire

[JASON.BLAKE1]

Good evening y'all so I have a 2001 protege 2.0 L it started running rough today. Runs fine when cold but when it warms up it runs rough and throws code p0300. I checked the coils what I could any how and got 93 ohms give or take. Any idea what I should check next?

 

[concept]

I found this:

P0300 is random misfire. most common problem with that code is spark plugs and wires I have seen new spark plug wires be bad. 2 check for spark ,fuel pressure and compression that will tell you what direction you need to go

Source(s):

ASE certified auto tech