7730 mask $AA? - DIY PROM - Third Generation F-Body Message Boards

nhromyak · 01-08-2005, 12:33 PM

I am presuming Howell us is using a $AA Mask, because in Tunerpro (of course I am use $8D ecm), under the constants "Chip Code Mask" the Howell Bin says AA.

When I look at the axcn.bin it says 8D.

Is there an $AA mask?

Where can I get it?

RBob · 01-08-2005, 12:41 PM

Quote:

Originally posted by nhromyak
I am presuming Howell us is using a $AA Mask, because in Tunerpro (of course I am use $8D ecm), under the constants "Chip Code Mask" the Howell Bin says AA.

When I look at the axcn.bin it says 8D.

Is there an $AA mask?

Where can I get it?

The MaskID of $AA is the GM engineering overide for the checksum routine. IOW, the EPROM checksum no longer matters. . .

RBob.

nhromyak · 01-08-2005, 01:10 PM

Oh.

Thank you for the quick response.