i have a 1998 hyundai excel i did a pinout using this tutorial Data Trouble Codes - Hyundai Forums : Hyundai Forum i got a knock sensor code i know how to deal with that i also by accident did the did the actuator control sequence procedure. and came up with a couple of injector codes what i was wondering is what the actuator test does and how does it determine malfunction and is it possible it could detect a blocked injector that perhaps just need a clean or is it another electrical component to the injector perhaps a solanoid