[Gmecm] MAT scaling formula

[Robin Handley]

Do you mean the table of temperatures vs. resistance, or have I
misunderstood? I've been using that in my attempt to understand the MAT
lookup array.

I'm looking for the MAT equivalent of the CTS formula: deg C = (scaled_value
* 0.75) - 40.

When plugging in Sunbird/$58 MAT related values direct from the .BIN, the
above formula does not give the same deg C value as PROMgrammer.

Robin

----- Original Message -----
From: "Steve Ravet" <Steve.Ravet at arm.com>
To: <gmecm at diy-efi.org>
Sent: 22 June 2006 17:09
Subject: RE: [Gmecm] MAT scaling formula


The gmecm page lists values for both and the corresponding temperature.
The table on the WWW page was copied out of a service manual.

--steve

> -----Original Message-----
> From: gmecm-bounces at diy-efi.org
> [mailto:gmecm-bounces at diy-efi.org] On Behalf Of Robin Handley
> Sent: Thursday, June 22, 2006 7:35 AM
> To: gmecm at diy-efi.org
> Subject: [Gmecm] MAT scaling formula
>
> Anybody know the formula to convert from stored MAT values to
> deg C - in the
> Sunbird/$58 code?
>
> Looking at the PROMgrammer deg C values, the formula isn't
> the same one as for CTS. :-(
>
> Robin