for help in connecting to this, make sure you have the correct drivers, and make sure you’ve got it using the correct protocol in settings. the ECUid will be displayed on the bottom right of the window when it successfully connects. launch the logger, input its v370 definitions, and connect to the ecu.

You can use the romraider logger to lookup your ECUid and Cid. Romraider does come with built-in definitions, but you want to get their most updated ones from their website. download it, and then copy it to the defs folder in the romraider software, explained here: it is probably based on others and very similar to those so i may have a starting point. this is not supported in the standard definition file so i need to find it seperately, or develop the definition myself. I have a 2008 forester 2.5i MT, so it looks like def EZ1GC00E is correct for me.

upload new program to ECU with ecuFlash.

edit program with romraider, save new file.

download with ecuFlash and save a backup copy of your current program.

ECU flash also needs a definition so it knows what value to write to what location. i think this definition is sort of a reverse-engineering thing where people just connected the dots and figured out what is connected to what. The definitions are really the lookup dictionary which gives romraider the mapping to know what is what. the romraider, with correct definitions, can translate these hex memory address location names, to the functions in the engine firmware. The ECU will download the code/program/software as a hex file. During some year subaru switched from 16bit ECUs to 32bit ECU’s so your tactrix has to be the correct one to support what you have. The tactrix adapter is special because it can both read and write to your ECU, most cables can only read. it’s always recommended to plug power into an extension cord in your driveway so it doesnt fail during a flash. it will need to be a windows because the tactrix 2.0 only has drivers written for windows.

laptop with java JRE 1.8 32bit installed.

correct/up to date definitions for your engine.

needs correct drivers package, this is a ‘J2545’ or something, not a serial device.I am frustrated that my CEL keeps coming on and disabling my cruise control so I am going to at least fix that problem here. I have a ‘small evap leak’ that I can’t track down, I have already thrown enough parts at it. i am learning how to do it on the fly as i go. this page may not be complete or go through the whole process. I am creating a placeholder to save my work as I go through this project.

Tactrix openport 2.0 error 8