The Efichip Scan Tool, also known as the MUT-III, is a powerful diagnostic tool for Mitsubishi vehicles, especially the EVO X. Successfully navigating its software and data updates can be challenging. This article discusses a personal experience of updating the Transmission Control Unit (TCU) software on an EVO X using the MUT-III, along with insights into its complexities and potential solutions.
Overcoming MUT-III Software Compatibility Issues
Initially, installing the latest MUT-III software (version 12031) proved unsuccessful, as it failed to recognize the EVO X program files. Reverting to an older version (11121) allowed for vehicle identification, but it didn’t display applicable updates. The solution involved manually installing a later TCU software version (8631B001.cff) known to be compatible.
This manual installation required disconnecting the radiator fans and connecting a battery charger for stable power during the programming process, which lasted approximately six minutes. Following the successful TCU software update, the “Teach-In Mode” option, previously unavailable, appeared in the TC-SST programming section.
Driving Results and Further Exploration
Post-update, the vehicle started, ran, and drove as expected. However, shifting felt harsher under part-throttle conditions compared to pre-update behavior. While successful, this highlighted the importance of selecting the correct software version.
Analyzing the directory containing other .cff ROM data files revealed the difficulty in identifying files specific to USDM (MMNA) EVO X models. Files for UK EVO X models were present, but deciphering the corresponding file names for USDM models remained a challenge. Converting between file naming conventions (e.g., “1860A98006” to 52690021) requires further investigation.
Decoding MUT-III Data Files
The MUT-III application utilizes MDB files to store data, all protected by easily cracked passwords. One notable file, VIN_Search.mdb (177MB), contains a wealth of valuable information.
Conclusion and Call for Collaboration
This experience underscores the complexities of working with the Efichip scan tool (MUT-III) for EVO X diagnostics. Successfully updating software often requires manual intervention and careful selection of compatible versions. Further research is needed to establish a clear mapping of ROM data files for different EVO X regional models. Sharing experiences and information within the EVO community is crucial to navigating these challenges. Collaboration can lead to a comprehensive understanding of MUT-III software, ultimately simplifying the diagnostic and maintenance processes for EVO X owners.
