Here's my thought path. A certain amount of fuel is passing through this 'controlled leak' (EHA) for tweaking the air/fuel ratio. So can it get 'stuck' allowing the maximum amount to 'leak' through at all times? I'm seeing a lot more posts on the different forums lately concerning increased fuel useage.
If the KEIII system can run in limp mode fairly well without electronic assistence, then why would it suddenly start gulping fuel? We all read Freestyler's horror story. I'd like to see a lot of people not have to use the
radiator cap principle to get a solution.