2003 WRX misfiring issues....Suggestions?

G

Gpatterson7

New member
2003 WRX 2.0 4 Cylinder. 153k miles.

I was getting onto the highway merging into traffic going pretty good. When I was in 5th gear I was trying to get up to 80mph to set my cruise control. When I was at 75mph my car was running really weird, stuttering and not giving me the normal power. Not as soon as I realized something was wrong I look at my dash and the CEL was blinking at me. So I pulled over and plugged in my AP to read the codes, Reading P0304, P0303, P0302 and PFFFF. At idol the car runs rough and isn't normal. I got it towed to my work (Salesman at a dealership) to have my mechanic look at it. Didnt know if anyone had some suggestions on where to start. Really hoping its nothing major.  Thanks!

 
 I forgot I had to put like $10.00 of 87 octane gas in my tank to get to work on a Monday. It was the only station close and was on E. The next day I filled my tank with 91 octane. Well this didnt happen until the next day. We cleared the 3 codes last night and only cylinder 2 misfire code came back. Mechanicwant to try a coil first so that waiting to be put in. I have a feeling it was the gas myself or atleast i hope.

 
Well I bought a coil already for cylinder #2. Mechanic will do that monday. But i haven't told him about the gas yet, hes not here today.

 
poor bugeye
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