I have a 1994 ls400 no problems until I decided to change my water pump and plugs and wires now I’m showing a code 52 I then replaced both knock sensors and knock wire still throwing code 52 changed rotors and caps also still code 52 but here’s the thing it only comes on when I press the gas slightly on when I go to take off from a stop light but it will reset after I turn the car off every time someone PLEASE HELP ME CANNOT figure this out two shops had no ideal