Well, I was. Key word: "Was". Hahahahaha.

 

So,

I'm in the middle of the same issues - idle and misfire - code p0300

compression came back good, plugs look good. I'm thinking it's the cats - putting a catless exhaust on it next week, along with coils, injectors, and new mafs.

Car seems to run fine under load, ocassionally sends misfire code while cruising - still rough idle.

 

could also be these shitty DC sport intakes that came on the car too though

 

check upstream o2 sensors?!

 

Also check the cats if they are blown.

Aftermarket intakes have a tendancy to blow cats. Don't ask me why or how they just do sometimes.

Also make sure you have good gas. Bad gas can do this the second you out it in your tank.