I am changing my ks very soon. Is it important to change the harness out at the same time? Or can I get away with just changing the sensor?

 

you can change teh sensor without changing the harness. sometimes you have to though. the plastic connectors become very brittle with all the heat under there. i almost broke mine trying to change out the sensor. you just have to jump in there and see what happens, but i would probably want a harness just in case. or you can just change out the harness anyways to be safe.