Got this engine light tonight on my streetglide as i was cruising easy.So i turned around without pushing it the light disapeared maybe 10 miles later.So just to see if it will still come on i slammed it down to 3000 rpm the light came back on,but on lower rpm it came back off????Was just wondering if anyone had this problem.Also would like to know how to check engine codes.I suspect a faulty o2 probe.Summer is just starting for us and i dont want to be stuck in the garage.