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

MERLINS RALLIART & EVOLUTION-X TUNING GUIDE1.13-UNKNOWN ECU ERRORIf there is no XML configuration file that is setup for your ECU/ROM, then EcuFlashwill report it as “UNKNOWN” and will prompt you try and create a suitable file. Ihave never had much success with this and so I save the unknown ROM, and closeEcuFlash. At this point I will read the unknown ROM with XVI32 hex editorapplication and find its ROM number.Open XVI32, select File\Open brows to the new unknown ROM and select it. It ishelpful to have XVI32 setup so that it displays data as a 16x16 grid. To achieve this,select Tools\Options\Appearance. Set the Number of Rows to 16 andNumber of Columns to 16. The columns can be increased as required when usingXVI32 as a search and examination tool on new ROMs.When XVI32 has opened the ROM, select Address\GoTo 50020.Note that the buttons hexadecimal and absolute should be selected.The application will jump to address 50020 as the top line. The 8 digit ROMidentifying number starts at address 50020A in hexadecimal and is four bytes long.Write these four two digit numbers down, they should be something like -53 61 00 10.Close XVI32 and open a RALLIART or EvoX XML file with a suitable editor such asNotepad, we will edit the file to get a starting XML for the new ROM.Edit the line to the number you found in the new ROM.Edit the line to the number you found in the new ROM.Save the file with the new number as part of its file name, so you can easilyidentify it later for editing purposes.Open EcuFlash, then select File\Open ROM and select the new ROM, EcuFlashshould now be able to open the ROM. Likely many items will be wrongly defined butyou now have a starter XML file to work with. The gents doing the code disassemblyand patching are not attempting to modify or examine in-depth all the ECU codesMitsubishi have produced, so it may be expedient to use another ROM code in yourECU if yours is not well supported by the tuning community.Figure 7:XVI32 – ROM IDENTIFIER NUMBERREV: 0.K merlin@three.com.au Page 23 of 134