rear o2?

[Michael Jez]

> An since we were talking about the rear 02 sensor we are
> supposed to read your mind that your talking about the
> front 02?
No U shouldn't, its just that when taking to equation what O2 sensor does
what and what does its signal look like, U should be able to tell just by
thinking about it thats its the upstream O2 sensor. Rear O2-downstream, will
not switch from rich to lean quickly- AS OUTLINED in the FSM. For some of us
that deal with these quirks on daily basis.... its really ez to figure out
what is talked about.
Mike Jez
93 SE-R with 2 O2 sensors and OBDI.
01 Max 4 O2 sensors.