Sonic runs a few minutes then shuts down. then P/T relay chattering and won't restart unless I disconnect battery and wait.

[Captandave]

Hi my Chevy 2014 Sonic 5 speed shuts down after running well for a few minutes. Then the p/t relay is chattering . Shop said bad fuse block which I replaced and it is still happening. Also the ignition switch was replaced and the radiator fan only runs on high.

 

[Captandave]

by the way the problem was the map sensor. I replaced it and its been running great. Any advice on best way to hard wire the fans is appreciated.