just wondering why are u running a 540 size motor on a 380 ESC???
why are u running fans, is it getting hot?
The loss of steering could be because of over loading the BEC, hard to say with out checking the current draw, the BEC puts out 1.5a
The loss of throttle to me sounds like overheat protection
3.11. Over-Heat Protection: If the function is activated, the output power will be cut-off when the temperature of
the ESC is up to a factory preset threshold for more than 5 seconds. When the protection happens, the Green LED
will flash.