ok, so, i got about half way home and then all of a sudden i started getting weird random misfire and it was only coming from cylinder #2. SO, about 20 miles later it got REAL bad, and the SES started flashing(good thing i was right by an off ramp) so i got off right away, pulled over, and shut it off. Pulled up the codes on my scan gauge and they said P0300 and P1133. So i called my friend Josh in Iowa who works for Carmax, and he said the P0300 is for O2 sensor and P1133 is for ICM ( I believe).

SO, i got to thinking, the guy that owned this F1 hood before me cut out the inserts in the scoops and the passenger one is pointed RIGHT at the ICM/cylinder 2, 5 coil pack. So, I pulled off cylinder 2 plug from the coil and put it back on, thinking maybe the high winds and 75mph caused it FOR SOME REASON, to pop off and cause a horrible misfire. I drove it home on the side roads 45-50mph and no misfires.

So, i checked everything over and it seemed fine, started it right back up and it started fine but with LOW misfire this time, 6 at IDLE, once driving it was fine).

Now, im thinking I am going to have to plug up those inlets with something, but idk what to plug it up with or HOW to go about doing so....GRRR!

p0300 is random misfires but doesn't indicate what cylinder, could be attributed to the front o2 sensor.

For some reason I remember reading that the code is thrown when the PCM sees multiple random misfires under in the first few seconds of start up, but that may be for a similar code.

I don't believe wind resistance coming through your hood is causing this, I am leaning towards an o2 sensor.

P1133 is also to do with your front o2 (heated) it seems.

Double check your front o2 sensor harness. Something may have happened when installing the hood.

It may also be coincidence and just be time for a new front o2 sensor.

well when i was seeing the HUGE amounts of misfire i was actually looking at my scan gauge and WATCHING the cylinders and they ALL came up under #2.

Try covering the coils and wires up with a rag or something so that the wind can't get at them, keeping it away from the belts, and drive on the highway. I don't know how effective of a test it will be but...

well, what i think im going to do no matter what is find something and patch those inlets up because rain can easily get in there and cause problems as well as other debris.

So, now i just gotta find something that wont look bad at all and then cover it up with some mesh.

If that doesnt fix it then MAYBE ICM...?

Get some thin sheet metal, paint it black, JB weld or get some epoxy and glue the mesh grille over the black sheet metal and then epoxy the whole piece to the hood on the inside.

That way it looks like grille with nothing behind it, just shadows, and no water or anything will get past it.

hmm, i will have to do that.

FYI Tim your 02 sensor was hanging under your car when you left. might wanna crawl under your car and check it out.

thats how it is jeremy. it just sits that low cuz thats how jeremy welded in the O2 bung.

Oh, well EVERYONE thought it was hanging down when you pulled away one of the times.

ya thats how it sits. and thats the post cat sensor anyways.

Did you pull the ICM connector and see if water got in there?

no i did not. hmmm never thought of that.

ok, so the BAD misfire hasnt come back. I think it was just a bad connection. I just installed zzp 10.3's, thinking MAYBE i had bad wires, well thats not the case.

Im beginning to think it may be the crank position sensor because the misfire is random. Everytime it misfires its always a different cylinder.

Would someone be willing to help me out with the install of this sensor?

IIRC, I saw a write up, its a pretty dang big job, Well on my scanner I have 1-8 misfires at start up, but it never comes back. I dont both with it. It never comes back, Didnt you already have those wires before ? Those bad boys are expensive !