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Thread: Injector Duty Cycle

  1. #1

    Injector Duty Cycle

    I was helping a buddy out, 98 supercharged GP, and I noticed when scanning that his injector duty cycle was 500 and at 50% throttle is was 1600. This is obviously not a percent. I am using the latest version of HPT, what I am doing wrong or how do I convert that to a usable number?

    THanks

    AW
    2017 Chevy SS Whipple

  2. #2
    HP Tuners Support
    (foff667)
    Bill@HPTuners's Avatar
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    post a scan, sounds like your doing something wrong.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  3. #3
    I was just using the standard default imperial config file. Didn't save any because his pcm was locked and I couldn't tune it.
    2017 Chevy SS Whipple

  4. #4
    Advanced Tuner xonelith's Avatar
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    As far as I know, the Injector duty cycle is this formula:

    Injector Pulse Width * Engine Speed / 1200

    The IPW are in milliseconds....
    All Motor 2001 GA GT1