ION and EGOR

[kenkelly at lucent.com]

you don't have to look offshore. the 96 Chevy LT-1 in Camaro, firebird, and
corvette uses 1 primary & one aftercat O2 sensor per exhaust manifold. I think
they run seperate mixture control on each bank. It is a sequential injection
with a seperate injector pulse for each cylinder.

		Ken

Bruce Plecan wrote:
> 
> Subject: RE: ION and EGOR
> 
> >> Gotcha covered again. Good point on the multiple
> >> sensor business. BTW,
> >> do any production cars ever come this way with duals
> >> on exh and sensor?
> >> Just wonderin if there are stock ECMs available to
> >> scan two sensors.
> >> Heh, not sure what they'd do, control mix on each bank
> >> separate (:o) or
> >> what, but it's an interesting question.
> >
> >  Not a per-bank thingus (IIRC), but the Nissan 300ZX has 2 EGO's:
> >1 Before Cat & 1 After Cat.  I dunno what they are supposed to do
> >(cept maybe tell the mechanic that you bypassed the cat!)
> >
> >-Thor Johnson
> >thormj at iname.com
> >
> Might look at a ZR-1 vette, I think it had a dual O2 for per bank
> monitoring, but that might have been for misfires rather than
> mixture.  McClaren F1 street car has dual bank monitoring as
> I recall, but probably 4 O2's.
> Bruce