Wideband VOUT logging via TGV position sensor input

vlcmstnsct · **Joined:** Tue Apr 24, 2007 2:33 pm **Posts:** 9

Since I'm speed density I abandoned the rear O2 option and tapped the analog output from my wideband into the unused MAF voltage wire (white). X/50*2+10 working perfectly.

uprev · **Posted:** Fri Jul 15, 2022 7:57 pm

Has anyone applied smoothing factors to this equation? Just to make it a touch nicer for data analysis?

Rpiper · **Joined:** Sun Nov 27, 2022 12:26 am **Posts:** 3

uprev wrote:

Has anyone applied smoothing factors to this equation? Just to make it a touch nicer for data analysis?

sorry for reviving this old thread, my question is how to create an equation for my wideband to read correctly
the wideband is a nano fueltech and has a different scale according to the original fueltech website the scale is as follows
6.2 Escala da saída analógica

0,59λ a 1,10λ Padrão

lambda AFR metanol volts
0,59 8,7 3,8 0,20
1,10 16,2 7,1 4,80

skrimshaw · **Joined:** Thu Aug 03, 2023 6:22 pm **Posts:** 12

I too am also trying to figure out the equation for my innovate lc2, has anyone figured it out?

0v=7.35 5v-22.39

for y=mx+b i got .3324*x+2.44 but im not exactly sure how to apply that to the voltage conversion of x/50.

I also have a fuel pressure sensor wired in 0-100 with the equation (x-25)/2 and i cant seem to get that one to work either :/

xtremedelta · **Joined:** Wed Dec 04, 2024 1:22 am **Posts:** 12

I have been using

Code:

                <parameter id="P39" name="Fuel Pressure" desc="" ecubyteindex="12" ecubit="0">
                    <address>0x000033</address>
                    <conversions>
                        <conversion units="psi" expr="(x-0.5)*90" format="0.00" />

I am sure its not completely right but its close for Fuel Pressure Formula, If someone has a better formula please post it here! Thanks!

DYERANDSONS · **Joined:** Sat Aug 24, 2024 6:17 pm **Posts:** 34

skrimshaw wrote:

I too am also trying to figure out the equation for my innovate lc2, has anyone figured it out?

0v=7.35 5v-22.39

for y=mx+b i got .3324*x+2.44 but im not exactly sure how to apply that to the voltage conversion of x/50.

I also have a fuel pressure sensor wired in 0-100 with the equation (x-25)/2 and i cant seem to get that one to work either :/

ive got x/50*3+7.35 works great for the LC2 its the constants for lc2 default settings

DYERANDSONS · **Joined:** Sat Aug 24, 2024 6:17 pm **Posts:** 34

I think true formula is AFR = (Voltage * (22.39 - 7.35)) / 5 + 7.35
which would be AFR=X/50*3.008+7.35 simplified for MTS LC2 default settings with 4.9 sensor

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