Question for the Gurus

[Weatheralls Auto]

My goal is to do this without removing chip, trying to get as much info on the chip to help in dumping it.

[robertisaar]

if the OBD2 PCMs are like the OBD1.5, then there are actually 2 flash chips inside the PCM. regardless, if you're going to actually remove the chip(s) from the PCB and install into an EEPROM reader/burner, you wouldn't need any type of bootloader.

[Weatheralls Auto]

While I wait for my 4X Speed cable, I know I will need to have a bootloader to be able to Download/Upload bin files to the PCM.

(I believe most GM OBD2 Pcms use Motorola 68332 chip? )

I really don't know assembly at all, but may have someone to help me (he codes low level language for AMD and now for HD TV tuners)

First step I have read is removing the chip and installing in a reader to dump the info.

Here is where my question lies;

All the OBD2 flash files I find are 512Kb, is that the WHOLE chip? If I give that file to this guy to work with, will it be possible to write the bootloader? or is there more info that absolutely needs to have the chip removed and dumped?