I recently bought a bassboat with an 07 75 etec on it. When running on the water the self diagnosis periodically goes off - the buzzer goes off and the 4 lights in the tach for oil,temp, etc go off one by one. It runs good but what gives?? It is a bit annoying. Also - can i get a harness and software to hook up my computer to it to get info on hours etc off it. Where? I probably should not have bought it. After i thought about it - looks like it was a guide boat and may have an ungodly number of hours on it. What can you tell me about the reliability of these engines? How many hours before rebuild? Thanks