Ok for sure i will definatly give those a good read. and by bare essentials i mean can i run the engine just with these parts? -ECU -Dropping resistor -Fuel injector relay -injectors -thermotime -water temp sensor -air regulator -cold start valve -tps -altitude sensor basicaly everything on the engine harness but the fuel pump relay and whatever conects to the wires numbered (1,48,73,4) Keep in mind the engine is going into a buggy so i have no chassis or body harness Thank you