Bricked 1996 T/A LT1 M6 ECU

[mekkis]

Anyone have a binary for this? My laptop locked up mid flash and I'd like to resurrect the hardware. The TC cal format appears to be half the size of the couple A4 binaries I've found. Woyuld those work with auto trans stuff disabled?

1996 Pontiac Formula / TA
LT1 5.7 V8 MFI M6
PCM: 16214399
Module1: 16233198

Any help is appreciated. Thanks!

[EagleMark]

I don't have any as bin, but I think there are some .cal here:
http://www.gearhead-efi.com/Fuel-Inj...ibration-Files

Someone once showed us how to bin a cal?

[mekkis]

The problem is the cal is half the size of the binary. Looking at the A4 bin/cal files on your Moates mirror, the cal information is at the beginning and end of the binary, and the middle portion is, for lack of a better OBD2 LTx term, the OS itself. Two maybes present themself:

1) The beginning and/or end of the existing binary are wiped, and I could read/repair/rewrite with the cals I have on hand.

2) I can write with the A4 binary, then reflash with the different ECU/module ID number M6 cal I have.

My problem with this whole situation is I'm awesome at lifting a chip once or twice, but you put too much heat into a PCB and it gets really easy to damage. I want to be able to get in and out in one go. :/

[Montecarlodrag]

I think what you need are the RAW .bin files to flash both chips with a universal programmer.
I have both, here they are

To avoid damage to the circuit board, solder a PLCC socket so you can take the chips out when you need to flash them. I have done a few this way and it works good.

Let me know how it works

[mekkis]

I think what you need are the RAW .bin files to flash both chips with a universal programmer.
I have both, here they are

To avoid damage to the circuit board, solder a PLCC socket so you can take the chips out when you need to flash them. I have done a few this way and it works good.

Let me know how it works

Nice. I hadn't opened the ECU case to look and ASSumed it was a PSOP44 like later stuff, not PLCC32. I have a bunch of those sockets for chipping EEC-V Ford, and recently the JTEC stuff.

I appreciate the backup. The kindness of strangers is the most rewarding kind.

[mekkis]

Just so folks have an idea what the job look like. Here's the red/black side of the board, 28F512 PLCC32.

[Caleditor]

Just so folks have an idea what the job look like. Here's the red/black side of the board, 28F512 PLCC32.

How did it turn out?
Did you run into any other issues?

[Montecarlodrag]

Just so folks have an idea what the job look like. Here's the red/black side of the board, 28F512 PLCC32.

Good Job
I always break the plastic in the bottom of those PLCC sockets. You don't need to, but I prefer to do it because I can inspect the solder under a magnifying glass. I have a socketed PCM like this, let me take a few pictures.

Were you able to repair the PCM with the BINs I posted?