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Thread: Fuel_Economy calculated pid?

  1. #21
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by dc_justin
    4 and 6250 accomplish that.

    I don't have my notepad in front of my that accomplished all of this, but the only constant you need (I think) is the weight of gasoline at 6.25lb/gal (thanks google).
    Ah, I see it now, thanks...

    So, is this what you got (where "rev" is unitless):

    VSS[mile/hr] / ( INJFLOW[lb/min] / 60[s/min] * IBPW[ms] / 1000[ms/s] * 4[1/rev] * RPM[rev/min] * 60 [min/hr] * 1/6.25[lb/gal] )

  2. #22
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    Quote Originally Posted by joecar
    Ah, I see it now, thanks...

    So, is this what you got (where "rev" is unitless):

    VSS[mile/hr] / ( INJFLOW[lb/min] / 60[s/min] * IBPW[ms] / 1000[ms/s] * 4[1/rev] * RPM[rev/min] * 60 [min/hr] * 1/6.25[lb/gal] )
    Yep, that looks how I did it. And the resulting values in the scanner are legit.

  3. #23
    Lifetime Member emarkay's Avatar
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    Paul, shall we test this one out and add it to the "sample set" of calc pids in the next release?
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  4. #24
    EFILive Reseller ringram's Avatar
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    Ok post up the full PID then bud and we can all try it out, compare it to our trip computers, manual calc etc and give feedback and see if it needs tweaking etc.
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  5. #25
    EFILive Crew Site Admin Tordne's Avatar
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    Quote Originally Posted by ringram
    Ok post up the full PID then bud and we can all try it out, compare it to our trip computers, manual calc etc and give feedback and see if it needs tweaking etc.
    Me too. I'd be keen to give this a go. Would need to convert to work with metric units also
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  6. #26
    EFILive Reseller kbracing96's Avatar
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    Quote Originally Posted by emarkay
    Paul, shall we test this one out and add it to the "sample set" of calc pids in the next release?
    I would vote yes to this.

    I would like to use this pid, but I haven't yet figured out how to create custom pids. I did a little searching and didn't come up with what I was looking for. If some one had a little time, could you do a brief write up for use newbees to learn form on how to create a custom pid like this? Or point me to where I need to look.

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  7. #27
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    Here's my pid file. My first one, hope it is right, the instructions were pretty easy to follow.
    Attached Files Attached Files

  8. #28
    Lifetime Member eboggs_jkvl's Avatar
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    Oh crap. searching for how to add a manual pid! Hm...
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  9. #29
    Lifetime Member eboggs_jkvl's Avatar
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    Ahhh. Search is good. Turn a couple PIDs on and I got's me a MPG gauge!

    I can't wait to try it!

    Elmer
    2014 Corvette Convertible, Torch Red, A6, Z51, 3LT, NPP Exhaust



  10. #30
    Lifetime Member emarkay's Avatar
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    Greetings Elmer! Glad to see you. I remember the good old days at LS1.com!
    BTW, Since you found it, care to post the link for those searchingly and PIDDingly challenged. (Not I of course...)
    Early EFILive V5 user - Upgraded from AutoTap for DOS!
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