I was having a discussion recently about the iDrive system. My understanding is that the 3 different settings (I, S & S#) can have 3 entirely different and completely independent ECU maps. The person I was talking to (a guy who generally knows his shit) disagreed. His understanding is that the only difference in the 3 is the target boost levels.
So what is the story? Are they completely independent or not?
This is important to my e85 project as I had planned to keep one map for regular 98 ron fuel, with the other 2 for e-flex. If my understanding is correct this is not a problem, however it is a problem if i am wrong...
Thanks.