OP did you ever figure out the issue with the P2F12 code? I just installed DP fix and go this one...Cobb says "air compressor control" as the fault code description.
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Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear
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