knock

Hey guys, I am stumped and really need some help. I purchased this car about 6 weeks ago: http://www.supramania.com/forums/showthread.php?154191-My-91-Supra , it is a 91 ma70 with a jza70 swap. The car was a factory r154 car, and so is the jza70 ecu that is in it. I bought the car with the wrong...

Considering that I don't have decent service anywhere around, first want to ask for an opinion over here. 2JZ running 5W30 develops a clear knock when it gets hot. The second I get RPM over 1k the knock either disappears or I simple can't distinguish it out of the all noises...

So I have code 52. Yes That one. And yes I have looked and search first. but let me explain. I had code 52 so I bought two brand new sensors. Then wound up having to replace the engine so I got the only engine I could (GE). So now I have one knock sensor hole. So I tried some things...