ECU Coding etc.
Hey guys. I have only just purchased a cable for coding and haven't actually tried anything yet, though I'm pretty tech savvy(Computer programmer by profession).
Coding in little customizations is mildly interesting to me but more intriguing is ECU flashing. I see tuning companies charge 1000+ for software tunes which I think is a bit extreme. What kind of hardware and what level of software know-how is required to do ECU programming?