This is what I was told about the p2fa3 code from Robb:
"The P2fa3 code is normal for a flashed car to have. It is a coding fault saying the ECU is running a different version of memory than it is expecting. Don't worry, the code will have no effect on how the car drives as it's merely a warning. In the next month or so I will be releasing maps that remove the P2fa3."
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