O2 sensors A/F vs voltage..

[Craig Pugsley]

Hi there,

Has anyone got some data on how the voltage of an O2 sensor maps to the
A/F ratio (presuming it's fully warmed up).. I've read about 5 million
pages on O2 sensors but can't even dig up a rough approximation of what
the data points on a classic O2 curve mean, or are they simply not
accurate enough to be read in this fashion?

Failing that, when I get a chance I'll convince the local dyno place to
let me measure the O2 sensor voltages VS their hi tech professional
emissions gear..

Cheers,
Craig.

PS I found a good cheap PC paralell port <--> real world interface kit..
~$35 US, 10 analog inputs 2 analog outputs 10 digital outputs (no
digital inputs), all driven by supplied-with-dos-5 Qbasic.

I'm using it to simulate some inputs for my analog ECU hack project.

I can supply details if there's any interest.