I just wanted to post a little blurb about a recent experience with my sled (HM turbo Vipec.) Got up to the alpine after a 45km trail in, bluebird, 3 ft pow everywhere. Sled was running odd, almost like it was overboosting and hitting rev limiter. Then it would only rev to 7200 and felt like it was hitting the rev limiter (where the mapping throws fuel at it.) Putted around that day pulling my riding partner out (new rider.) Took the sled home, plugged the laptop in, instantly found my problem. MAP sensor was reading zero, obviously boost pressure was reading zero as well. $40 ebay MAP sensor and away you go. Very cool to be able to troubleshoot so easily with this technology!