DSM/ECU/TMP76xxx MH6xxx/SBC
7675 single-board computer
I have a 1992 (first half) Mitsubishi Eclipse GS. It has a 6-bolt 4G63, without the turbo. The 4G63T, which has a turbocharger, has been the primary focus of reverse engineering by others. This means my car uses:
- different data tables to run the engine correctly (though this could be overcome by having a dynamometer tune done over the turbo data tables)
- different code, specifically skipping or removing the code used to manage turbo things, lack of a knock sensor/board
A problem arises when I try to track down or retrieve the data and code. I only have/can track down ECUs for my specific application that are non-eprom versions. So it won't be as simple as pulling the EPROM and reading it out to use an EPROM ECU which is tunable. So I need a way to get the internal ROM off of the microprocessor so I can use that on an EPROM ECU and fix things. I ended up making up a (my first) PCB to run the microprocessor in a socket, change the mode it is running in, and run off of an EPROM to I can make it run code to dump the internal ROM over serial.