so yea the ingine light is on code 20 is Electrical load detector, and code 43 fuel supply system. i put the gs-r motor on my 90 da i dont feel a decrease in power since the lights came up. Oh and theirs a buzing noise by the intake manifold wen i give it gas i can here it to, like a winding n buzing put to gether n the rpm gauge goes up to 1500 n comes down to 500rpms this **** wierd please help!!!!!!!!!!!!!!!!!!!