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Old 12-11-2011, 08:45 AM   #1
jordangreen21
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Join Date: Oct 2010
Location: North Carolina
Posts: 165
My Ride: e46 m3
O2 sensor problem

So I had catless headers and everything was fine but I am about to sell my car so I put the stock headers back on. After installing them and putting all the o2 sensor back in the car is running like ****. I've heard having the sensors in wrong can cause this to happen. Any help would be appreciated. Thank you
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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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