Originally Posted by WhatWRX

alright last week went driving down the road and my car (07 wrx) threw a cel. went to my work (advance auto) and scanned the car. i had 3 codes p2096 post catalyst fuel trim bank 1 system to lean and i also had that same code pending. the other code was p0303 cylinder 3 misfire detected. i aslo had my rear o2 throw malfunction codes in the past so i dont know if this had anything to do with this.

mods are: aps cai 70mm, perrin inlet, walbro fuel pump, sti tmic, hks ssqv bov, and tbe no cat. also snowman tuned for all of these parts.

if you have any ideas i liked to hear them. thanks mike