What kind of chip is this?

[GTO_Joe]

I bought a 1g ecu from someone about a week ago. When I opened it up (to check for leaky caps) I found a socket and an after market chip in in it. I removed the chip plugged it into my rom copier and dumped the image. The header (0000 - 03f6) is as follows:

07/05/04
natepharr .....78/60/selectable.. octane reset.. eliminate fuel cut.. a/c cutout 75% for 3 seconds.. 750 idle.. 550cc injectors.. stock 2G mas... enhanced closed loop throttle tables.....
Dale Herring.. Order num 1369..................................4EFB
ORIGINAL OCTANE RESET ADDRESS 50DE CHANGED TO RESET STUTTERBOX TO 5000 RPM ON COLD BOOT
CHANGED 504F TO JUMP TO NEW STUTTERBOX SELECTION CODE IF MOTOR IS NOT RUNNING
NEW STUTTERBOX SELECTION CODE ADDED AT CF70
GAUGE SUBROUTINE AT 5F0F MODIFIED TO LOOP TO CC00 (4C00)
NEW KNOCK GAUGE SUBROUTINE WRITTEN AT 4C00
STOCK REV LIMITER AT 7279 REROUTED TO CD00 (4D00) TO ADD STUTTERBOX AND CLUTCHCUT CODE
MAIN REV LIMIT AT 4D05
CLUTCHCUT REV LIMIT AT 4D0F
STUTTERBOX REV LIMITS AT 4D20, 4D25, 4D2A, 4D2F, 4D34
SET FOR 4500, 4750, 5000, 5250, AND 5500
NO FUELCUT
SHIFT CE LIGHT AT 7000 RPM
REMOVED 4 BYTES AT 5ED5
REMOVED 11 BYTES AT 5EFF
SUCCESS!!!!!!!

I originally thought this was a keydiver chip but after searching around I'm starting to wonder. Anyone know who makes this thing? I figure if it's a keydiver it would have Jeff's name in the header and use an atmel eeprom. This chip is a ST 256Kbit eprom (and the sticker was put on really sloppy. Any ideas? Regards.

Joe

 

[matthewdesigns]

Nate Pharr works with Jeff, so it is a Keydiver chip. I had some email correspondence with Nate at one point when Jeff was unavailable. I'm pretty sure there's a link to email Nate somewhere on the Keydiver site, but I can't get to the site for some reason right now to check. You might email him directly and see if it's a chip he burned prior to working with Jeff since it looks a little "off".