P0420 AND P0057. Car was great for the first 1,000 miles but now its giving me a headache. Anyways last night I was on the interstate in 5th gear wot and at about 130mph I heard a loud pop from the engine compartment. Sounded like it backfired through the intake manifold. After driving normal for about 30 miles the cel came on and threw the P0057 code. It says its the heated oxygen sensor bank two. Does anyone know which side is bank two (driver or passenger side??)
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