I was cruising around last night in my B18C hatch when all of a sudden I threw a CEL. Oh, I was so pissed! I've had the swap for over a month now and it was immaculate! I got home and completed the circuit to diagnose what the fuck was wrong. It threw a code 23 which is the knock sensor. I took the car out for a run through VTEC to see if it was working properly and it still scoots through the second set of lobes like a champ. I have no clue why I'm getting this code thrown at me. I figure that if the knock sensor was fucked up, VTEC just wouldn't work. Has anyone had this problem before? Does anybody know how to fix it? Any help is much appreciated. Thanks in advance!