Question

Toyota Avalon with engine code P0330, how do I fix it?

Answer 1

Is that the only code you have? If so, just replace the Knock sensor I would replace both sides since labor is 2.5 hours of labor and also replace the short harness

I dont know what year you car is so I cant post a picture.

Answer 2

P0330 TOYOTA - Knock Sensor 1 Circuit Bank 2 Or Single Cylinder

Read more: https://www.autocodes.com/p0330_toyota.html