ApolloMJ

Knock Sensor

If you get a code P0330 Knock Sensors ES2000-2001

Replacing two Knock Sensors. it took me 9 hours. Parts replaced:

1. Knock sensors from rockauto.com, AIRTEX Part # 5S2254 cost $105.79

2. Knock Sensor wiring harness

3. Intake gaskets

4. By-pass hose

5. Antifreeze

Replaced wiring harness 82219-07010 and by-pass hose from Lexus Dealer because I didn't have the energy to go through the whole mess again. Dealer charged me $42.00 for the harness. As well change the spark plugs cause they are breeze to change with half the engine missing. I did the work myself 3 years ago with no further problem.

Do I have to do all those things? And what does it mean if the PO325 comes on too?

Most likely the wiring harness for the knock sensors wasn't replaced. This is usually the main reason for knock sensor codes. The harness sits under the intake plenum in the valley between the two heads and tends to cook easily. This would explain the codes coming back.

LL

Thanks Im goin to look in to that. I think that might be it

So I have a lexus es300 2000 and a month ago the check engine light came on so I had it diagnost by a shop and it came out to be a "knock sensor malfunction" so about last week I went to a local car parts shop and bought 2 brand new sensors for about $350. I had my old ones replaced and the codes cleared. Today I drove my car for 80 miles to have the OBD system ready so I can FINALLY get my car to pass a smog check. BUT THE CHECK ENGINE LIGHT CAME BACK ON WITH THE SAME CODES?? CAN ANYONE HELP ME?