[Gmecm] Looking for Hack of MAF sensor read routine in P4 ECM

[dozierhc at aol.com]

Steve...
 
That looks to be what I need.
Now need to digest it to see how the Timer IC is accessed in the routine for counts, and to build my own transfer functions for deciphering the pulses.
I want to also see if I can measure the pulse WIDTH, as the GM Flex-Fuel sensor puts out a 1 to 4 msec pulse as a function of temperature.
 
Hank
 
Message: 6
Date: Wed, 7 Feb 2007 10:04:45 -0600
From: "Steve Ravet" <Steve.Ravet at arm.com>
Subject: RE: [Gmecm] Looking for Hack of MAF sensor read routine in P4
    ECM
To: <gmecm at diy-efi.org>
Message-ID:
    <DBB2E4C4173F1749B6C74341406117830198F02A at NASDAQ.usa.Arm.com> Content-Type: text/plain; charset="us-ascii"> -----Original Message----- > From: gmecm-bounces at diy-efi.org 
> [mailto:gmecm-bounces at diy-efi.org] On Behalf Of dozierhc at aol.com
> Sent: Friday, February 02, 2007 1:01 PM
> To: gmecm at diy-efi.org
> Subject: [Gmecm] Looking for Hack of MAF sensor read routine in P4 ECM
> 
>  Does anyone out there have a section of disassembled P4 code 
> for reading the MAF sensor on a frequency based ECM such as 
> the Buick 1227148 $31T code or such. 
> Want to see if I can graft a modification of it into $8D and 
> $58 code to read a Flex-Fuel sensor...
>  
> Thanks, Hank

Hank, there's a link to a 165 disassembly on the gmecm page, done by
Ward Spoonmore, I believe.  Go to the gmecm page, then papers, then the
links ECMguys page.  Maybe that'll help?

--steve


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