O2 sensor Voltage

[Chad]

I haven't read any of the ecm strategies, where can I get them (assuming
you're not talking about ecu specific manuals)?  If the ecu has some sort of
time delay response, what if I output a square wave (minimum external
hardware on the microcontroller) with a dc offset to trick the ecu?  The way
I understand O2 sensors, the output voltage will resemble a sine wave whose
amplitude changes as the ecu adjusts for lean/rich conditions.

>Might not be anywhere near that easy depending on your ecm.  Have you read
>about any of the ecm strategies for monitoring O2 v, and corrections?.
>Some expect a specific response, and time delay from the O2 to changes in
>injector timing.
>Grumpy



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