[Diy_efi] (no subject)

[vg30dett at portugalmail.com]

Hi,
Ill be using voltage based MAF.
Single Maf has known issues at idle, because when idling it will suck air only
from the left side because ?Idle Air Control Unit? location
it will actually
read twice the air needed at idle. 

Marco. 

Citando Rick McLeod <dunvegan at sbcglobal.net>:

 The other question I'd have, are you using voltage
 based MAF's or frequency based, as averaging frequency
 output would be more difficult
 
 --- Steve Ravet <Steve.Ravet at arm.com> wrote:
 
 > > -----Original Message-----
 > > From: diy_efi-bounces at diy-efi.org 
 > > [mailto:diy_efi-bounces at diy-efi.org] On Behalf Of 
 > > vg30dett at portugalmail.com
 > > Sent: Friday, January 20, 2006 11:41 AM
 > > To: diy_efi at diy-efi.org
 > > Subject: [Diy_efi] (no subject)
 > > 
 > > Hi all,
 > > I'm thinking in running a dual Maf Setup (V6
 > engine with 
 > > independent plenums), I'm planning to build a PIC
 > based 
 > > circuit....that will average the voltage of the
 > two MAF's and 
 > > feeding the ecu with the average result. 
 > Example... Left Maf
 > > 3.2V; Right Maf   3.4V; ECU will receive a 3.3 V
 > Signal.
 > > Ecu setting is the easy part, this has been done
 > before, and 
 > > my big questions are:
 > > 
 > > Does anyone reckon any issues that may result of
 > this odd setup?
 > > 
 > > There are any easier methods to average the Maf's
 > voltage?
 > 
 > How about a single MAF?  If you were carrying each
 > MAF reading through,
 > and fueling each bank based on it's MAF then there
 > might be some benefit
 > to having 2, but since you're combining their
 > results anyway it just
 > seems like extra cost and opportunity for something
 > to go wrong.  If you
 > are worried about keeping the flow balanced then
 > maybe use a second
 > "dead" MAF for the other plenum, not connected to
 > anything.
 > 
 > --steve
 > 
 > 
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