2001 LS430 idles great, when i give it like 1/4 throttle it pulls a knock sensor code and cuts power quite a bit. Just replaced knock sensors and same issue, any ideas?

 

This is what AI says and rodents are mentioned for doing this....In a Lexus LS430, a knock sensor code (typically P0325 for Bank 1 or P0330 for Bank 2) is almost always triggered by a fault in the sensor's wiring rather than the sensor itself. Because the sensors are buried deep beneath the intake manifold, they endure intense engine heat. [ , , 3, 4, 5]