So let me get this right you are looking for the code programed into the
chip
I would have to dig around but I have that from all three ECUs
digjet USA
digijet Euro
Digifant USA

wont do you much good
they are complex and non transferable to one another
the digifant program is massive and I susspect has some ODB 1 or 2 software
that was never incorperated into the van

as I have said the Euro ECU works with the American digijet my understanding
of the differance is that the fuel mapiing and mabe the timing is infuanced
as well in my chassis dyno testing swaping out the Euro and USA  repatedly
showed 13 HP differnce gain in the Euro ECU
I still have a few Euro ECUs I sell to Customers when they go to 2.1 engines
in the digijet vans

Bob Donalds

----- Original Message -----
From: "tinker man" <tinkerman007@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, September 14, 2007 9:39 PM
Subject: ECU firmware location

> Hi all,
>
> This is kinda getting in-depth into embedded systems design, but does
> anybody know if the firmware for our ECU's (Digifant or Digijet)
> resides completely on the 2732 EPROM or is part of it contained also
> INSIDE the microcontroller itself?
> The reason I'm asking this is because I suspect I have a fried
> microcontroller (Intel 8049H) but if it's a custom version with
> protected firmware inside, replacing it won't solve the problem. My
> CPU reads:
> MAF 8049H P A167
> 078801
> DSD8905V5 U
> WBX82HSCH
> (C) INTEL 1977
>
> That WBX82HSCH stuff seems to hint it's a custom version
> (WBX=WaterBoxer) with protected firmware, with some of the firmware
> also outside in the external EPROM.
> Any guru's out there?
>
> Cheers,
> TM