dzcafe

Thank you for your time in answering my question. Thanks for the advice, It does makes complete sense to start with the tune up and go from there, I have now asked for the tune up and to use best spark plugs available and will get them to check the spark plug wires as well. They said they can then look at the knock sesor wiring harness to see if it is damaged. Thanks again and I love the dog photo. :) dzcafe.

Thank you for your reply, dz

Let me give you some direction that help P0330 Link and Knock Sensor and Knock Sensor replaced

Hello Lexus Owners - I am the proud owner of a 2001 ES 300 Lexus,112,344 miles. The engine light and trac light are now consistently on, have tried cleaning/changing the gas cap resetting the codes via disconnecting the battery, but the lights come back after 20 miles or so. I have decided to go ahead and have my local mechanic change out both sensors / wiring harness/ intake gaskets and since half the engine will be off, get them to change out the spark plugs as some of you have suggested. What other maintenance should I perform ? I have some major leaks such as the with the valve cover. I am trying to keep the other labor reasonable and my mechanic works with me, since the charge for the knock sensors should be a couple of hours, with half of the engine being exposed I want to take advantage of this to perform other maintenance. Any suggestions?