Stepped on PROM dumps

[Shannen Durphey]

Ludis Langens wrote:
> 
> 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/
The last byte is location  0XFFF?  I may be able to tell you a funny
story about this soon.  You wouldn't believe what the strange symptoms
are that I'm fighting.

Shannen