If the knock sensor goes off does it retard the timing and send the engine into limp mode. Ive replaced about everything i can replace on this damn car, and i cant figure this shit out. My car runs GREAT.....until it warms up. Then it just starts gargling like me at 8am. I dont know what the deal is, but it doesnt happen until the cel comes on, and the only cel code is 23 (knock sensor) on a 92 prelude with an OBDI swapped H22A, would a KS actually put the car in limp mode?