WB vrs NB info, LEAN CRUISE mode

[Bruce]

In this version, it does lean under all but highway, and then just hammers a
fixed AFR.  No toggling to C/L for a check up.   There are probably several
different strategies, used, I think the early 90s cop car (fleet) TBIs do a
C/L check up.
bruce

From: "Ron Schroeder" <rjs at bnl.gov>
Subject: Re: WB vrs NB info, LEAN CRUISE mode
> At 12:16 AM 8/14/98 -0400, you wrote:
> <snip>
> >Last week (running lean cruise with a fixed AFR), I was able to change
the
> >timing, see a change in PW, and the O2 stayed the same.  BTW, the PW
changes
> >were 2.8 to 3.2 msec., that should have showed some change.

> Hi Bruce,
> Just a quick question for my clarification.
> Is LEAN CRUISE mode open loop with an ocasional switch to closed loop to
> find 14.7:1 so it can calculate the narrower injector pulses for the
leaner
> operation?
> Thanks,
> Ron Schroeder


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