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V-AFC Fuel Trim Settings

Discussion in 'ECU's, Electronics, and Tuning' started by RFHOMI2U, Sep 12, 2003.

  1. RFHOMI2U

    RFHOMI2U Senior Member

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    I have a V-AFC on my D16A6 motor in my CRX. I know it sounds weird, but my last crx had a d16z6 so I bought the V-AFC and my new one does not have VTEC. I'm simply using it to adjust my fuel curve. Does anybody have recomendations regarding adjustments I can make or any pre-set fuel curves that people know uses good on the A6 motor?

    right now it is:

    -10% @ 1000 - 2000
    -5% @ 2100 - 3100
    0 @3200
    Gradual increase to + 10% at 7000 RPM

    Adjustments anyone? Leaner? Richer? thanx!
     
  2. pills_PMD

    pills_PMD Super Moderator

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    go to a dyno.
    use a wideband.
    make more power.

    or at least get yourself a shitty ghetto a/f gauge
     
  3. pissedoffsol

    pissedoffsol RETIRED

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    i think you'll find that you want to go negative up top. when more vacuum is put on the map due to air flow, it sucks more fuel out of the fpr and stuff and runs kinda rich.

    but the only safe way is really with a dyno. you don't want to go too lean
     
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