PDA

View Full Version : a/d voltage and wideband



veee8
August 1st, 2008, 11:09 AM
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
August 1st, 2008, 06:50 PM
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
August 1st, 2008, 07:20 PM
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
August 1st, 2008, 07:47 PM
select-
{CALC.AFR_NGK} and {CALC.BEN_NGK}

3693

veee8
August 2nd, 2008, 05:26 AM
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
August 4th, 2008, 04:05 PM
did you get this going?

veee8
August 4th, 2008, 10:06 PM
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.