My EFI kohler has been to the shop many times , and they cant find the problem. When it gets hot.. after 3-4 hrs of use, it will gasp and snap and sputter like its runnig out of gas, or like its timing is off. I can bleed the fuel line , and it helps a bit.(always seems to have air in line when hot. I can park it under a tree to cool it off , but it sounds horribly unprofessional , and I am wondering if any other EFI owners have had a problem. The blinking red light code gives this... 3 blinks pause, 4 blinks , in this order 3-4-3-1-6-1 i need a new cpu module?