Merlins Ralliart and EvoX TUNING GUIDE Version K.pdf - EvoScan

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MERLINS RALLIART & EVOLUTION-X TUNING GUIDE1.4-EcuFLASH INTRODUCTIONEcuFLASH is a free software program to support the tuning of MITSUBISHI andSUBARU ECUs and can be configured for multiple engine types with a correctlyconfigured definition file.The program was written by Colby Boles and TACTRIX.Regardless of whether you have a suitable OBD-II cable or not, you should readthrough the guide to familiarize yourself with the various capabilities of theEcuFLASH program. There is an amazing quantity of parameters that can bemanipulated, but by no means should all items be altered. Indeed, part of thebenefit of using the factory ECU is to retain most of the detailed factory settings.1.5- EcuFLASH INSTALLATION & SETUPDownload the EcuFLASH program, save the application in a master EcuFLASH folderwith the version number.Launch the EcuFLASH installer application that you just downloaded. You can eitherlet it install into C:\Program Files\Open ECU\EcuFlash, or you can set it to alocation that is NOT under Program Files. It is in fact better to install EcuFlash andEvoScan to folders not under Program Files as Vista and Win7 both make duplicatecopies of files held there and this becomes a problem when updating EcuFlash andEvoScan to newer versions. Consequently, I always install and setup as follows:REV: 0.K merlin@three.com.au Page 12 of 134
MERLINS RALLIART & EVOLUTION-X TUNING GUIDEWhen first installed, the EcuFLASH will not look exactly like this. There will be aSubaru folder and a Mitsubishi folder, each having the standard release XML filesfor that particular release version. I delete the Subaru folders, rename theMitsubishi folder to the current EcuFLASH version so I have a current copy. Then Icopy across my current personal EcuFLASH folders with all my working definitionsand client ROMs. You will be adding new items to your definition file as the monthsgo by and new items to tune are found. These new items may never get included inthe official releases, so they become quite valuable to you.When finished installing, open the EcuFLASH folder, make a short-cut of theEcuFLASH exe file and set it into your desktop for easy access. Now have a quicklook at the definition file for your vehicle. Right click on the selected file and select:Open With > NotepadOrOpen With > Notepad++Portable1.6-XML DEFINITION FILESWhile a lot has been revealed of what is in the ROM, by no means have all dataitems or tables been uncovered, or released. For example, at the time of writingthis revision, the parameters for ignition cranking have not been available in thevarious Evo forums. There are many other functions yet to be described or defined.In addition, parameters (1D), tables (2D) and maps (3D) may have been found anddescribed for some ROMs that are in wide use in the EVO community, but not forthe more obscure vehicles. Definition files for these cars/ROMs are either poor ornon-existent. This means you as the tuner will have to do a lot of the hard slog towinkle the main data from the ROM binary file. With perseverance, it can be doneby closely examining known files with a hex editor and then searching the unknownROM.Definition files can be created or altered with a plain text editor, such as WindowsNOTEPAD. When working on definition files, the file name extension must be xml.The definition file has to follow a specific format to be valid and thus read properlyand requires the operator to know the absolute hex address in the raw binary (BIN)code of the parameter to be added or modified.REV: 0.K merlin@three.com.au Page 13 of 134
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