PDA

View Full Version : ADX file edit for WBO2 sensor



Dom
03-27-2017, 07:28 PM
A201 $E6 TP5 is set up with WBO2 must be 0v = 10.0 AFR, 5v - 20.0 AFR.
Can I edit the ADX file to a WBO2 that has an output of 0V = 7.35 AFR and 5V = 22.39 AFR or 1.1V = 14 AFR and .1V = 15 AFR?

Dom
03-30-2017, 04:29 AM
I made a graph and I think I can figure it out. The lines cross close to Stoichiometric AFR. I dont know if there are any other setting that need to be set. No EGR.

steveo
03-30-2017, 07:55 AM
im horrible at math, but you can muddle through a linear equation easily.

so use algebra to solve for x and get a multiplier for a linear equation that is 0 based then just add your base back in,

( 22.39 - 7.35 ) / 5 = 3.008

so use 3.008X+7.35 to convert volts to afr (volts being x)

but your raw value is probably 0 to 5 volts as 8 bit, so 5 volts is actually 255!

so actually 0=7.35 and 255=22.39

tunerpro equation would be 0.0589X+7.35

you will have to tune that equation (tweak the 7.35 a bit at a time) as these inputs are far from perfect

Dom
04-02-2017, 08:27 PM
Thanks steveo
i am also horrible at math.1158711587 looks easier.

Dom
04-07-2018, 07:24 AM
It has been a wile, making the time and looking into this closer I understand more of what you are tell me. moates.net support has a great page on this.

Thank You again