Greetings,

I'm quite new here and desperately need your professional advise on diesel stuff. my brother has a mitsu adventure that has a km reading of (115,000+) its 4 years old and was casa maintained all the way, just recently we were advised by mitsu motors for a diesel calibration, Im not that familiar on car maintenance and stuff and I was wondering if you guys can recommend a good shop that could diagnose,calibrate, and double check whats really going on with my bro's AUV. Just recently he was flagged by MAPSA anti smoking team cause of failing the emission test, he was really surprised cause of the fact that his AUV have undergone a 100,000k check up a couple of weeks before that testing. What could be wrong? do u think carbon cleaning could possibly fix the problem?

Need your assistance on this one guys.

Thanks in advance.