O2 feedback

[Ken Kelly]

Martin,
	I disagree! When using EFI the fuel flow is the same if you
don't change the injector timing, and the total non-fuel
flow is the same if we don't change the throttle or RPM.
Since the EGR valve replaces some of the air with
exhaust(usually considered inert) gas the total oxygen flow
is reduced so the Air Fuel Ratio gets richer.

		Ken

Martin Hill wrote:
> 
> It might enable you to run a leaner AFR, but the introduction of EGR
> does not change the actual AFR present, you still have the same
> amount of fuel going in, and the same amount of air going in.
> Therefore AFR is the same.
> 
> Martin
> 
> > > But there shouldn't be a change in AFR when you apply EGR.
> >
> >
> > Doesn't EGR allow you to run a leaner AFR (someone had told me that a
> > while ago)?
> >
> >
> > --
> > Rob
> > MailTo:gallant at oasys.dt.navy.mil
> >