Knock sensor error - Toyota Tundra Forums : Tundra Solutions Forum
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post #1 of 2 (permalink) Old 06-15-2017, 10:33 AM Thread Starter
Join Date: Oct 2012
Location: Springfield, VA
Posts: 3
Knock sensor error

2007 Tundra Crewmax 5.7l 4x2

Just wanted to throw this out there for the knock sensor error code P0333. In my situation I was getting a knock sensor error code, so I pulled the intake replaced harness because of rodent nesting. Minor chew makes on harness. Code went away or so I thought. It would randomly return. Took it to dealership they wanted $700 to replace bad knock sensor. ROFLMAO!

My issue was that after driving randomly around the money light would go out. So I thought maybe faulty sensor but I had checked them all while changing harness.

Well I located some on Ebay (Toyota OEM numbered part) for a great price and figured that next time money light came on, I would swap them out, all four. If one is going I'd rather do all than just the one.

Anyway, it wasn't the knock sensor at all. Turns out that I had a low oil level that would trip the knock sensor, more frequently for me because one of my driveway was pitched. If I backed into the driveway with front of truck pitched downward with low oil level it would trip the knock sensor.

When I parked with the front of truck pitched upward, I would not get the error code.

So, if you are getting the Knock sensor error code. 1st check your oil level. I was and am currently tripping Bank 2, Sensor 2, when parked front of truck pitched downward.

I have checked the oil religiously since and have effectively saved myself $700 dealership fees for one knock sensor.

Hope this helps someone.

Last edited by nswst8; 06-16-2017 at 02:23 PM.
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post #2 of 2 (permalink) Old 06-15-2017, 12:43 PM
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Join Date: Jan 2009
Location: SC
Posts: 549
Re: Knock sensor error

Glad you figured it out and didn't go the ebay route on those sensors. My advice to anyone who actually needs to replace the knock sensors is buy factory toyota parts by shopping them online. It will save you time and headache in the long run over those grey market factory reject ones you find on ebay. They are a crap shoot most of the time and the same thing goes for even the more expensive aftermarket ones from places like rockauto. Those piezo crystal sensors are very specific as is the ecu that is looking at the signal.

On a slightly related note i found the oil level in our newly purchased 15' 4.0 liter to be a little overfilled (or was it under) and was causing some noise noise. Would makes sense since it is a frequency thing and I have seen weirder stuff.
Regularly check your oil people, especially before longer than usual drives.

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Home of the original wired and Plug and Play SAIS Bypass Kits or Toll Free 844-307-7671es
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