a/d voltage and wideband

[veee8]

We are trying to connect the NGK AFX wideband to the V2. The voltages are displayed, but the AFR is nowhere close to what the wideband shows. The output from the AFX output is linear 0-5 volt. When at 0v = 9.0 afr, when at 5v=16.0 afr. Can I configure this in the V2? Please help, very confused.

[joecar]

Calculated PIDs:
showthread.php?t=132 (http://forum.efilive.com/showthread.php?t=132)
showthread.php?t=130 (http://forum.efilive.com/showthread.php?t=130)
showthread.php?t=10 (http://forum.efilive.com/showthread.php?t=10)

[mr.prick]

according to the NGK AFX manual (page 11)
http://www.ngksparkplugs.com/pdf/AFX_Tuning_Manual_REV_06.pdf
this would be the formula,
({EXT.AD1}*1.4)+9

[mr.prick]

select-
{CALC.AFR_NGK} and {CALC.BEN_NGK}

3693

[veee8]

This is what I came up with last night. Is this all I need?

# ================================================== ============================
# 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 AFR "Air Fuel Ratio"


# ================================================== ============================
# Add slot definitions here
# --------------------------------
# See sae_generic.txt for more information on "SLOT" formats
#
#Units Low High Fmt Expression
#------------ ------------- ------------- ---- --------------------------------------------------------------
*CLC-00-002
AFR 9.0 16.0 .1 "(EXT.AD1)*1.4+9

# ================================================== ============================
*PRN - Parameter Reference Numbers
# --------------------------------
# See sae_generic.txt for more information on the *PRN section
#
#Code PRN SLOT Units System Description
#------------------------- ---- ------------ ---------------- ---------------- ------------------------------------------
CALC.AFX_AFR F005 CLC-00-002 "V,AFR" O2-Wide "Wide Band AFR 1 - AFX"

[mr.prick]

did you get this going?

[veee8]

Yes, after some trial and error, I used these....

*CLC-00-001
AFR 9.0 16.0 0.3 ({EXT.AD1}*1.4)+9

CALC.AFR_NGK F001 CLC-00-001 AFR O2-Wide "Wide Band AFR NGK"


If the moderators want to add this to the next update, it is confirmed to work.