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  1. #1
    Fuel Injected! gregs78cam's Avatar
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    May 2011
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    N. Idaho
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    Can we get this put into the list. The difference among Pulse Width, Base Pulse Width, and Base Pulse Constant.

    Pulse Width = time injectors are open
    Base Pulse Width = a measure of time used in the ECM/PCM to calculate how long to open the injectors. Adders such as AE, PE, and injector voltage bias get added to the Base Pulse Width to arrive at the Pulse Width to be sent to the Injectors. Sometimes used to describe Pulse Width.
    Base Pulse Constant = A constant derived from a ratio of injector flow rate to cylinder volume.

    Sorry, just something that drives me crazy, using a time related term to describe a constant we set in the ECM.
    1978 Camaro Type LT, 383, Dual TBI, '7427, 4L80E
    1981 Camaro Z-28 Clone, T-Tops, 350/TH350
    1981 Camaro Berlinetta, V-6, 3spd
    1974 Chevy/GMC Truck, '90 TBI 350, '7427, TH350, NP203, 6" lift, 35s

  2. #2
    RIP EagleMark's Avatar
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    Feb 2011
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    64
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    10,477
    Of course we can!

    I found a couple more I have too so since we have a TTT I'll wait a day to update in case we get more input!

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  3. #3
    Carb and Points!
    Join Date
    Aug 2012
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    8
    Thanks for this, a first class job that brought me here through a search. Well done!

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