It seems my happiness was premature, even with the new wire code 52 shows up and gets worse when everything is fully warmed up. I tried swapping in my spare ECU and had the same result so the only thing left is the sensor itself. I know the plug is the same as the 5SFE knock sensor so I might try swapping the sensor from my spare 5S over and see what happen.
I don't really mind dealing with hiccups, but I hate doing the same thing over and over again, especially when you have to fully reassemble everything to test it. Loosen the lugnuts, lift it up, pull the wheel, pull the crossmember, unbolt the front of the exhaust, break my arm in 3 places so it has enough joints, blindly find the stupid plug. I'm not even sure if there's enough room to get a socket up there to get the sensor out on a RHD model but I guess I'm about to find out.