Well today I had a chance to check some things out before we went for a ride. Checked valves made sure they were still properly adjusted, they were. Checked spark plug, gap was slightly out of spec at .030 plug looked good. Replaced with new one and gaped at 025. Replaced battery with another I had. My wife took it out for a 20 mile or so ride and all is fine, I took it out for a few miles and ran it hard and no fault light appeared. Not sure what the problem was, I found no lose hoses or anything else. I can't believe that the spark plug could have caused the light to come on. That leaves the battery, it's the only other thing that I change. It's possible I only cleared the codes by disconnecting the battery, I'm not sure. She'll take it out this Sunday and we'll see what happens, if it comes back on I'll report it here and take it to the dealer.