E46Fanatics - View Single Post - Service Engine light wont go away - Bank 1 & 2 too lean?
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Old 12-13-2011, 09:08 PM   #6
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Join Date: Oct 2010
Location: North Carolina
Posts: 165
My Ride: e46 m3
So I am having a similar problem... I was running catless headers and everything was running fine. I installed my stock headers again and am having these same codes thrown. Everything was fine before... is it just a coincidence that I am now having a vac leak because that is what I keep seeing people say about having similar problems.

D2 Racing Sport Suspension ~ aFe CAI ~ AA Tune ~ Orion AEs ~ Topspeed Exhaust ~ Euro Headers ~ UUC SSK Evo 3 and DSSR ~ 15% Tint Windows and 50% Windshield
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