RE: LT1 with boost.

[Dave Plummer <davepl@MICROSOFT.com>]

Two questions, then:

1) Why is an FMU required on a MAF car at all, then?  Shouldn't it just see
the amount of air going through and add the right amount of fuel
"automagically"?

2) Are there MAF <-> FUEL tables anywhere in the PCM?  I've never seen them
in the '94/95 LT1 pcms.  Or is it just a formula?

- Dave

> > 1.  VE is only used for backup mode if the MAF fails, so 
> forget it for
> now.
> > 2.  All fueling is calculated from MAF (until you max out. 
> . .335 grams
> impala, 471 grams F/Y car)
> > 3.  The PE/RPM table is a % change to base A/F ratio with 
> higher numbers
> >     making the mixture richer.  If you max the sensor, you 
> just have to go
> 'over-rich'
> >     in the table at that RPM point.  Easy to do, no 
> problem, works fine.
> > 4.  If you have the reprogramming capabilities (a friends 
> shop, in my
> case) FMU's suck.
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