What I meant by that is the sensor doesn't care what fuel your using or what % ethanol you have in your fuel, Its always going to read stoich of that particular fuel at 1.0 lambda.
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What I meant by that is the sensor doesn't care what fuel your using or what % ethanol you have in your fuel, Its always going to read stoich of that particular fuel at 1.0 lambda.
You could use this (like Mr.Prick suggested): 14.7 / {GM.AFR} * {EXT.WO2LAM1}
Or you could instead log GM.EQIVRATIO and use this: {GM.EQIVRATIO} * {EXT.WO2LAM1}
And I would display WBO2EQ1 = 1 / {EXT.WO2LAM1} on the dash/chart to avoid confusion...
After using EQ units for a while you get used to them, you'll like EQ better than AFR.
Personally I use BEN as a reference,
I don't care what the AFR is at the moment as much as I care if it is what it should be.
I don't worry about this anymore. :)
Has anyone ever got a FJO wideband to read serial into the V2? I bought a universal cable from taq and hooked up the wires tonight but I get Controller not found.
I swapped Tx and Rx and still the same Controller not found message.
I thought I read somewhere that FJO's serial would not work, yet I see that its supported in the V2 for serial WB02 and Paul said it is supported as well ?
Measuring the analog voltage not connected = 4.41 and connected = 4.11 therefor the offset 4.11/4.41=.931973 How would I enter that into my calc pid. It keeps coming up as an invalid. Below is the error. How should I have this calculated or written in the calc pid to show properly?
FJO Analog AFR {CALC.AFR_FJO}
Expression:
AFR = ({EXT.AD1} / .931973) * 2.5 + 8.75
is NOT valid because:
Syntax error: ".", position 14.
PID value cannot be determined because
the following error would occur:
Expression not valid: Syntax error: ".", position 14.
***Looks like I got it, it needed a 0 in front of the decimal AFR = ({EXT.AD1} / 0.931973) * 2.5 + 8.75
You may want to calibrate your AD's or at least check them,
you shouldn't need to add an offset for the V2.
can somebody make a sticky about how to edit the Calcuated.Pids the right way and how to write formulas.
thanks
Calculated PIDs:
showthread.php?t=132
showthread.php?t=130
showthread.php?t=10
Based on the formula för a liear equation (y = kx + n), in this case, I would use "n" to adjust for any offset.
So the equation in your case would translate into:
y = lambda
k = line slope
x = voltage
n = vertical offset = the point at the y-axis where the line crosses it
So by adjusting the n-number, you could offset the whole line up or down.
If you have an analog voltage number from the manufacturer for e.g. not connected/connected, I would just compare it with your current reading and insert that offset on to the n-value that was current for you base line lambda calibration.
Is that making any sense? :)