Quote:
Originally Posted by bmarcinczyk14
yup, new to me too. i heard it talked about on my sentra ser forum, its pretty common with our cars once you tune with a afc.
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well that is a different story. the AFC just does pluses or minuses so it is simply making changes to the stock ECU numbers so if the stock ECU makes changes due to temps for example the AFC doesn't know this so it keeps taking or adding what it originally had programmed which can make things worse but with Cobb or Osiris you actually change the numbers in the ECU.