[Diy_efi] Q regarding placement of a pressure sensor

[Shannen Durphey]

There are units designed to replace the VAF with a MAP and IAT pair.  The
HKS VPC (recently discontinued) comes to mind.  It outputs a frequency
signal based on air density which is similar to the VAF signal.

Shannen
steve ravet wrote:
> 
> Bob Moon wrote:
> >   I am thinking about converting from the MAF to a MAP
> > sensor arrangement.  Typically, the MAP is routed to
> 
> You can't replace a MAF with just a MAP.  You need some estimation of VE
> in order to calculate MAF from MAP.  GM ECMs use a table indexed with
> both MAP and RPM.  You could also use throttle position plus MAP (less
> accurate).
> 
> --steve
> 
> --
> Steve Ravet
> steve.ravet at arm.com
> ARM,Inc.
> www.arm.com
> 
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