Colonel_Klinck 2011-04-27 19:58:00 UTC it's basically a way of downloading and uploading custom maps to the ECU that means you can adjust the A/F ratio and ignition timings. Also allows you to run diagnostics on hardware and check error codes.it's all hereviewtopic.php?f=5&t=12511and herehttp://www.tuneecu.com/TuneECU_En/index.html
MRK-01 2011-04-28 00:17:00 UTC not required from what I can see. I have performed all mods and loaded TuneECU maps directly to the ECU without a hitch.