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Thread: Question about hooking up AEM gauge output to V2

  1. #31
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    Quote Originally Posted by joecar View Post
    Which AEM do you have...?

    Does your user manual show and equation relating V and AFR...?

    Or a table of voltages and AFR...?
    I have the aem failsafe gauge as well. That is why I piggy backed this thread instead of creating my own. Sorry for that now, it got long...

    https://forum.efilive.com/showthread...103#post210103

    Here is a thread that lists the calc_pids I used to use...
    00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.

  2. #32
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    Got home looking at things and found ad1 is 4.40 volts on the V2 and ad4 is at 4.46 volts . My multimeter is reading e
    4.47 volts across the orange connector.
    Side note, I have a "required configuration not found" message that flashes momentary on my V2 when I first plug it in the vehicle.
    Last edited by Slowrc; November 1st, 2016 at 12:33 PM.
    00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.

  3. #33
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by Slowrc View Post
    ...

    Side note, I have a "required configuration not found" message that flashes momentary on my V2 when I first plug it in the vehicle.
    Post a screenshot of this.


    Also, post here the previous calc_pids.txt that produced the correct wideband AFR for you... I'll edit it to include the BEN calculation

    ( looks like the various AEM widebands/guages are configured differently )

  4. #34
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    Quote Originally Posted by joecar View Post
    Post a screenshot of this.

    It is a quick 2 second message that flashes on the led screen of the V2 when I first plug it to the DLC of the vehicle. Just don't remember that ever happening. Bot sure how to screen shot that.


    Also, post here the previous calc_pids.txt that produced the correct wideband AFR for you... I'll edit it to include the BEN calculation

    ( looks like the various AEM widebands/guages are configured differently )
    I am looking for the old data on the aem set up I have been using. Thanks again!
    00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.

  5. #35
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    Here is the file Blacky posted that I believe I was using. I can't verify because that laptop is long gone.

    # ================================================== ============================
    # File details
    # ------------
    #
    # This section defines various details about the file format.

    *FILE

    #Parameter Value Description
    #---------- ---------------- ---------------------------------------------------
    VERSION 7.1.1 File version
    DECSEP . Decimal separator used in this file

    # ================================================== ============================
    # Units
    # -------------------
    # See sae_generic.txt for more information on the *UNITS section

    *UNITS

    #Code System Abbr Description
    #-------- ---------- -------- -------------------------------------------------------------
    None None "" "No units"
    K Metric "K" "Degrees Kelvin"
    R Imperial "R" "Degrees Rankine"
    LAM None "LAM" "Lambda"
    EQR None "EQR" "Equivalence Ratio"
    E00 None "E00" "AFR based on E00"
    E10 None "E10" "AFR based on E10"
    E85 None "E85" "AFR based on E85"


    # ================================================== ============================
    # Add slot definitions here
    # --------------------------------
    # See sae_generic.txt for more information on "SLOT" formats
    #
    #Units Low High Fmt Expression
    #------------ ------------- ------------- ---- --------------------------------------------------------------

    *CLC-00-032
    factor 0 4 .0 "{GM.EQIVRATIO}=1"

    *CLC-00-100
    LAM 0.5 1.5 .4 "{EXT.AD1}*0.1625+0.49875"
    EQR 0.5 1.5 .4 "1/{CALC.WIDEBAND.LAM}"
    E00 0.5 1.5 .4 "{CALC.WIDEBAND.LAM}*14.6"
    E10 0.5 1.5 .4 "{CALC.WIDEBAND.LAM}*14.2"
    E85 0.5 1.5 .4 "{CALC.WIDEBAND.LAM}*9.7"

    *CLC-00-110
    factor 0.5 1.5 .4 "{GM.EQIVRATIO}*{CALC.WIDEBAND.LAM}"

    *CLC-00-120
    factor 0.5 1.5 .4 "({SAE.LONGFT1}+{SAE.LONGFT2})/200+1"

    *CLC-00-220
    factor 0.5 1.5 .4 "iff({CALC.CL}, {CALC.LTFTBEN}, {CALC.WO2BEN})"

    *CLC-00-273
    C 0.0 100.0 .1 "{GM.DYNAIRTMP_DMA.C}"
    F 40.0 220.0 .1 "{GM.DYNAIRTMP_DMA.F}"
    K 280.0 380.0 .1 "{GM.DYNAIRTMP_DMA.C}+273.15"
    R 500.0 680.0 .1 "{GM.DYNAIRTMP_DMA.F}+459.67"

    *CLC-00-300
    % 0.0 100.0 .2 "{SAE.MAF.gps}*{CALC.DAT.K}/{SAE.MAP.kPa}/{SAE.RPM}*3445.2/displacement()"
    VE 0.0 2.468 .4 "{SAE.MAF.gps}*{CALC.DAT.K}/{SAE.MAP.kPa}/{SAE.RPM}*15"

    *CLC-00-305
    % 0.0 100.0 .2 "{CALC.SELBEN}*{CALC.VEN.%}"
    VE 0.0 2.468 .4 "{CALC.SELBEN}*{CALC.VEN.VE}"

    *CLC-00-310
    gps 0.0 400.0 .1 "{GM.VETABLE_DMA.VE}/{CALC.DAT.K}*{SAE.MAP.kPa}*{SAE.RPM}/15"

    *CLC-00-315
    gps 0.0 400.0 .1 "{CALC.SELBEN}*{CALC.MAFN.gps}"

    *CLC-00-430
    VE 0.0 4.0 .4 "{GM.DYNCYLAIR_DMA}*{CALC.DAT.K}/{SAE.MAP.kPa}"

    *CLC-00-435
    gcyl 0.0 1.0 .4 "{GM.VETABLE_DMA.VE}/{CALC.DAT.K}*{SAE.MAP.kPa}"


    # ================================================== ============================
    *PRN - Parameter Reference Numbers
    # --------------------------------
    # See sae_generic.txt for more information on the *PRN section
    #
    #Code PRN SLOT Units System Description
    #------------------------- ---- ------------ ---------------- ---------------- ------------------------------------------

    CALC.CL F032 CLC-00-032 factor Tuning "Closed Loop (based on EQIVRATIO)"

    CALC.WIDEBAND F100 CLC-00-100 "LAM,EQR,E00,E10,E85" Tuning "Wideband measured fueling"

    CALC.WO2BEN F110 CLC-00-110 factor Tuning "BEN from WB"
    CALC.LTFTBEN F120 CLC-00-120 factor Tuning "BEN from LTFT"
    CALC.SELBEN F220 CLC-00-220 factor Tuning "BEN selected from LTFT or WB"

    CALC.DAT F273 CLC-00-273 "C,F,K,R" Tuning "Dynamic Air Temperature"

    CALC.VEN F300 CLC-00-300 "%,VE" Tuning "Calculated VE, not corrected"
    CALC.VET F305 CLC-00-305 "%,VE" Tuning "Calculated VE, BEN corrected"

    CALC.MAFN F310 CLC-00-310 gps Tuning "Calculated MAF, not corrected"
    CALC.MAFT F315 CLC-00-315 gps Tuning "Calculated MAF, BEN corrected"

    CALC.VEDCA F430 CLC-00-430 VE Tuning "Calculated VE (from DCA)"
    CALC.DCAVE F435 CLC-00-435 gcyl Tuning "Calculated DCA (from VE)"
    00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.

  6. #36
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    I logged it on the way in this morning and it is further off than I thought . The gauge itself was reading about 14.3to1 AFR and the efilive reading was about 16to1 AFR. Also all the analog inputs read closer to what the meter said than ad1.
    AD1 4.40
    AD2 4.45
    AD3 4.45
    AD4 4.46
    Looks like I should swap over to ad4 as it seems to be the most correct.
    Thanks for all your efforts JOECAR . Thanks a lot man!
    00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.

  7. #37
    Joe (Moderator) joecar's Avatar
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    Ok, from looking at your calc_pids.txt, you can use CALC.WO2BEN as the BEN correction factor.



    Question: when your gauge matches the EFILive reading, which calc_pids.txt is being used (post it here).

  8. #38
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    I don't currently have a set of calc_pids txt that is working to get the efilive reading to coordinate accurate to the aem gauge reading. The data I posted in post #35 is the old one I used a while back I believe. I haven't tried those with the new updates and new laptop.
    00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.

  9. #39
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    Btw , I am OLSD tuning always.
    00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.

  10. #40
    Joe (Moderator) joecar's Avatar
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    ok, which exact AEM model do you have...?

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