I would be curious to know how much the ECM compensates for things like air temperature and also altitude - Living here in the Coachella valley most of my daily driving is done within 100 or 200 feet of sea level, but when I go out for rides I almost always head up into the mountains to 600o feet or above, also air temperatures can range from the 30's or less to well over 110 degrees - - - despite these extremes I cant honestly say that I have ever noticed any increase or decrease in performance
either I just have not been paying attention, or perhaps the computer is compensating enough to make any difference negligible
Dave@DDMWorks - ??