Page 3 of 4 FirstFirst 1234 LastLast
Results 21 to 30 of 31

Thread: Using EFILive (V5/V6) to capture Wide band O2 data

  1. #21
    EFILive Developer Site Admin Blacky's Avatar
    Join Date
    Mar 2003
    Posts
    9,490

    Default

    Quote Originally Posted by LS1Nova
    Paul, I'm using the same thing as jnorris in the first post. Basically I need to use a different formula, but I am braindead and can't figure out how to do it.

    I'm using my analog output voltage to go into my a/c pressure sensor with V6.

    Your right my afr=v*1.6+10

    Thanks
    Frank
    So you're not using a FlashScan interface, and you are trying to hook your wide band via the A/C pressure sensor?

    Regards
    Paul

  2. #22
    Junior Member
    Join Date
    May 2005
    Posts
    38

    Default

    or would it be easier for me to convert the voltage in the a/c voltage pid, v*1.6+10 and log that?
    64 Chevy II, twin turbo 402 LS1, TH400, Dana 60.


  3. #23
    Junior Member
    Join Date
    May 2005
    Posts
    38

    Default

    thats correct

    Quote Originally Posted by Blacky
    So you're not using a FlashScan interface, and you are trying to hook your wide band via the A/C pressure sensor?

    Regards
    Paul
    64 Chevy II, twin turbo 402 LS1, TH400, Dana 60.


  4. #24
    EFILive Developer Site Admin Blacky's Avatar
    Join Date
    Mar 2003
    Posts
    9,490

    Default

    Oh, I misunderstood your requirements - sorry.

    Use this calculated PIDs file:
    Note: There is no need to define the units V and AFR because they are already defined in the Program files\EFILive\V7\Configuration\sae_generic.txt file.

    Code:
    # ==============================================================================
    # 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
    #-------- ---------- -------- --------------------------------------------------
     
    # ==============================================================================
    # Add slot definitions here
    # --------------------------------
    # See sae_generic.txt for more information on "SLOT" formats
    #
    #Units             Low          High      Fmt  Expression
    #------------ ------------- ------------- ---- ---------------------------------
    *CLC-00-001 
    V                  0.0          5.00       .1  "{GM.ACPS}"
    AFR               10.0          18.0       .2  "{GM.ACPS}*1.6+10"
    
    # ==============================================================================
    *PRN - Parameter Reference Numbers
    # --------------------------------
    # See sae_generic.txt for more information on the *PRN section
    #
    #Code                      PRN  SLOT         Units            System           Description
    #------------------------- ---- ------------ ---------------- ---------------- ---------------------------------
    CALC.AFR                   F001 CLC-00-001   "AFR,V"          Fuel             "Wide band AFR"
    (Edited to correct {GM.ACP} to {GM.ACPS} as per LS1Nova's post further down)

  5. #25
    Junior Member
    Join Date
    May 2005
    Posts
    38

    Default

    I copied that formula and I get an error code when I open efilive now.

    err_cinfig/92
    units afr not found

    and I can't connect now due to this error

    err_noinit/121
    not initialised, call obiil nit()first

    Frank
    64 Chevy II, twin turbo 402 LS1, TH400, Dana 60.


  6. #26
    Junior Member
    Join Date
    May 2005
    Posts
    38

    Default

    Quote Originally Posted by LS1Nova
    I copied that formula and I get an error code when I open efilive now.

    err_cinfig/92
    units afr not found

    and I can't connect now due to this error

    err_noinit/121
    not initialised, call obiil nit()first

    Frank
    Got this fixed, I just ereased all the afr's in the formula. but it ends up giving me a number in the 350 range for 14.7 when I log.
    64 Chevy II, twin turbo 402 LS1, TH400, Dana 60.


  7. #27
    EFILive Developer Site Admin Blacky's Avatar
    Join Date
    Mar 2003
    Posts
    9,490

    Default

    Make sure you are using the latest version of EFILive - I strongly recommend upgrading to V7.2.2 if you have not already done so. It's free - even if you are still using an AutoTap interface.
    http://www.efilive.com/upgrade.html

    Meanwhile you can add the AFR units to your calc_pids.txt file like this:
    Code:
    # ==============================================================================
    # Units
    # -------------------
    # See sae_generic.txt for more information on the *UNITS section
    
    *UNITS
    #Code     System     Abbr     Description
    #-------- ---------- -------- -------------------------------------------------------------
    #Fuel
    #----------
    AFR       None       AFR      "Air Fuel Ratio"
    
    # ==============================================================================
    # Add slot definitions here

  8. #28
    Junior Member
    Join Date
    May 2005
    Posts
    38

    Default

    Thsnks for all the help Blacky.

    I ended up figuring it out, here's what I used. It just seemed more simple to me.

    # Calculated
    # ----------------
    #Units Low High Fmt Expression
    #------------ ------------- ------------- ---- ---------------------------------
    *CLC-00-001
    V 10.0 18.0 .1 "({GM.ACPS}*1.6+10)"

    # ================================================== ============================
    *PRN - Parameter Reference Numbers
    # --------------------------------
    # See sae_generic.txt for more information on the *PRN section
    #
    #Code PRN SLOT Units System Description
    #------------------------- ---- ------------ ---------------- ---------------- ---------------------------------
    CALC.AFR F001 CLC-00-001 "V" Fuel "Wide band AFR"
    64 Chevy II, twin turbo 402 LS1, TH400, Dana 60.


  9. #29
    EFILive Developer Site Admin Blacky's Avatar
    Join Date
    Mar 2003
    Posts
    9,490

    Default

    Good idea, I forgot about {GM.ACPS} (the sensor voltage).
    However, that will show up with units of "V".
    You can make the units show up as AFR by adding them as I showed a few posts ago. Then just change BOTH V's to AFR.

    Paul

  10. #30
    EFILive Developer Site Admin Blacky's Avatar
    Join Date
    Mar 2003
    Posts
    9,490

    Default

    So the correct calc_pids.txt file should look like this:

    WARNING - check that the units AFR do not exist in the file:
    Program Files\EFILive\V7\configuration\sae_generic.txt
    If that file already contains the AFR units definition then do not include the AFR units definition in calc_pids.txt

    Code:
    # ==============================================================================
    # 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
    #Code     System     Abbr     Description
    #-------- ---------- -------- -------------------------------------------------------------
    #Fuel
    #----------
    AFR       None       AFR      "Air Fuel Ratio"
    
    #Code     System     Abbr     Description
    #-------- ---------- -------- --------------------------------------------------
     
    # ==============================================================================
    # Add slot definitions here
    # --------------------------------
    # See sae_generic.txt for more information on "SLOT" formats
    #
    #Units             Low          High      Fmt  Expression
    #------------ ------------- ------------- ---- ---------------------------------
    *CLC-00-001
    V                  0.0          5.00       .1  "{GM.ACPS}"
    AFR               10.0          18.0       .2  "{GM.ACPS}*1.6+10"
    
    # ==============================================================================
    *PRN - Parameter Reference Numbers
    # --------------------------------
    # See sae_generic.txt for more information on the *PRN section
    #
    #Code                      PRN  SLOT         Units            System           Description
    #------------------------- ---- ------------ ---------------- ---------------- ---------------------------------
    CALC.AFR                   F001 CLC-00-001   "AFR,V"          Fuel             "Wide band AFR"

Page 3 of 4 FirstFirst 1234 LastLast

Similar Threads

  1. looking to buy a wide band?
    By jeff keyuk in forum Lounge
    Replies: 4
    Last Post: June 7th, 2010, 07:07 AM
  2. Wide band
    By Harrismarine in forum FlashScan V2
    Replies: 0
    Last Post: July 6th, 2008, 11:27 AM
  3. The Wide Band....how do we really know...
    By Redline Motorsports in forum General
    Replies: 19
    Last Post: January 8th, 2007, 05:51 AM
  4. wide band o2
    By woody69 in forum Custom Operating Systems
    Replies: 11
    Last Post: October 23rd, 2006, 03:19 PM
  5. lm-1 wide band
    By 69camaro5speed in forum General (Petrol, Gas, Ethanol)
    Replies: 2
    Last Post: January 6th, 2006, 07:39 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •