2003 foreman 450 overheated to the point that recoil melted. Rebuilt topend runs mint now, but the es will kick out after a few minutes of riding. Works great until it kicks out. It’s giving the 5 blink code I did everything the manual says and everything checks out
– new battery
– new angle sensor
-tried different pod
– tried different voltage regulator

It’s goofy because it will reset after a day or after I unplug some stuff and plug it back in. Manual points towards ecu but I what are the chances it’s that? I’m pretty sure it was working fine until the major over heat. What could the high heat have ruined to cause the problem? Any help appreciated thanks in advance