I can tell you for one the ECM fix is not the cure all. I had mine done when I bought it new a couple of months ago. Just yesterday I had my rig heat up on me when we were just going around the 2.5 mile loop. We had little bike/walk athon for a local cancer kid and I was lucky enough to take him on a ride with all his friends. We were just putting around the loop having fun, checking bikes, and just having a good time. When we got back to the start I looked down and saw the temp light on. I turned it off and let it sit for a couple of seconds, then turned it straight on without pausing. The fan came on like it should and it cooled down fairly quickly. This was the first time this has happened but needless to say the ECM bypass is in my cart right now. Hope they get something fixed but for now I'm not taking any chances.