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so I have a 13 10 series frs just had the motor replaced and im having this issue now (didn't have it with the old motor) RPMs will go between 550ish to 1000 and It threw a CEL for codes P015A P015B P119E and P219A talked to the dealership and they don't know what the issue is any help. Also I checked my AFRs and they go from 11 ( where it hits 550 RPMs) to 20.4 (1000 RPMs). Any help? Tuned with a custom ECU tune for intake manifold, intake, and full exhaust. (I did have to put back on my stock headers since the last ones cracked yay shitty welds)
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