$E6 & $OD are for the 4L60E transmission.
$31 & $OE are for the 4L80E transmission.
$OE was also used for Manual Transmission. (posted in this tread)
Definitions $E6, $OD, $OE, and $31 are 64K binary chip files or more commonly called .bin file. The hexadecimal addressing for a 64K chip is address 000000 ~ 00FFFF.
The SST 27SF512 is a 64K chip and a very popular chip for definitions $E6, $OD, $OE, and $31
C2 SST 27SF512 Chip [C2] - $10.00 : Moates.Net
The factory chip for definitions $E6, $OD, $OE, and $31 are EPROMs that require an Ultraviolet Light to erase.
The SST 27SF512 chips are EEPROMs, which can be erased electronically.
Bookmarks