Did you get that one fixed? Based on the model number, this has the Nikki CARB feedback carburetor system correct? These will turn the MIL on for simple stuff like an open/shorted coolant temp sensor, dead oxygen sensor, base fuel mixture out of whack, etc. There are very few components in the system so it is easy and quick to check. Adjusting the base fuel mixture can be a little tricky but no big deal. I have also seen a lot of dirt and moisture built up in connectors causing various problems on these.