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maf or ecu

  1. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi all, Had to replace my MAF sensor after my old one was flat spotting alot. Had the ECU re-programmed today as I installed the newer model MAF sensor but the power seems to kick in a lot higher in the rev range now. It doesn't really kick in until about 1700 RPM as before it felt like...