Stepped on PROM dumps

[Carl Summers]

Wow Ludis,,,great catch.....I imagine there could be some very frustrated people out there that have tried to use that.......great work
-Carl Summers

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-----Original Message-----
From:	Ludis Langens [SMTP:ludis at cruzers.com]
Sent:	Sunday, August 15, 1999 11:52 PM
To:	gmecm
Subject:	Stepped on PROM dumps

The following five '7747 PROM dumps from the diy_efi web site each have
one trashed byte:
 anlz5483  Aksn  Akal  azft9503  asdz9578

The last byte of each dump is supposed to be 0x96.  In these five cases,
it is 0x00.  Fixing this byte makes the sumcheck come out correct.

The 0x96 is a LDAA opcode in the INTegrator fuel adjustment function. 
If this byte is not fixed (but the sumcheck is), the ECM will keep
pulling out fuel as if the INT has gone all the way to zero.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/