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ptrick09 05-30-2013 12:54 PM

2008 Wrx Running rich+ low boost
I bought a 2008 wrx about two months ago. it ran fine up until about a month ago when i replaced the front O2 Sensor. It ran fine up until about a week ago now it Is running quite rich when i accelerate(as low as 11-1) it also seems to be backfiring more often and blows smoke when i get on it. It has Perrin BOV, a downpipe, and a perrin cat-less exhaust.

ptrick09 05-30-2013 01:03 PM

i also forgot to mention that when i get on it i seem to have little to no bost im not sure if it is my boost gauge or if something else is wrong

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