ULTM8Z

Loop Closed Param, Min Error to Make INT Correction

It's listed in counts, where 4 appears to be factory.

Given the INT "chases" the O2 sensor, does this relate back to the O2 sensor voltage? If so, how?

There's also another parameter called O2 Filter Coefficient.

Neither of these have the built-in explanations attached to them, hence why I"m asking here.

RBob

iTrader: (1)

Been a while, IIRC, it is the difference between the desired O2 value and the current O2 value. When exceeded for a programmable period of time, the ECM moves the INT. The desired O2 value comes from the R/L window tables.

If that isn't exact, it at least gives an idea of what the parameter is for.

RBob.

ULTM8Z

Thanks RBob. So how do you translate counts into mV?

Looks like the parameter range is 0 to 255 counts in TP. So 4 out of 255 would be 4/255 = .015.

Since the O2 sensor is 0 to 1V, would it then by .015 x 1 = .015 mV for 4 counts?

ULTM8Z

Looking through some old threads... I found this that you posted...

ADC = O2 VOLTS * 226

O2 mV = ADC * 4.42