After dewinterizing the boat and skiing a few times, the check engine comes on after about 2 passes. When the boat is turned off and on, it goes away again for about two passes before it comes back on. It did not used to happen last year. It is 08 196 with about 900 hours on. The boat runs the same after the light comes on. Checked fluids and the temp is fine. Anyone might have have an idea what could be causing it? I would prefer not having to buy diacom if I don't have to.