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Old 09-19-2021, 01:48 PM #1
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2021 TRD P033 error knock sensor
Wondering if anyone has gotten a P033 error code on their 5th? I purchased mine in Dec 2020 and yesterday I got the reduced power warning, take it to the dealer cel light etc alert. When I hooked up the reader it showed a P033 error. I guess that’s the bank 2 knock sensor. Any thoughts on this. Same thing happened to my 2005 after about 16 years of age. Just didn’t anticipate something like this on an 8 month old truck.

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Old 09-19-2021, 02:02 PM #2
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Very unusual. Any chewed wires?
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Old 09-19-2021, 02:10 PM #3
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Very unusual. Any chewed wires?
I looked but I couldn’t find any. But I can’t really see the knock sensor.

I did see a chipmunk bring an oak leaf under the engine area yesterday morning just before I drove away and saw the alert. Thought it was strange. But I thought that was just a coincidence. I crawled under the engine but cant see any evidence of a nest etc.
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Old 09-19-2021, 02:57 PM #4
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I think Ford got rid of knock sensors in the 1990's. It was cost reduction and the accomplished the the goal with software.
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Old 09-21-2021, 04:48 AM #5
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According to Toyota something made a nest under the manifold. Grrrrr. Now I have to submit a claim.
Last edited by Ant; 09-21-2021 at 04:50 AM. Reason: Edit
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Old 09-21-2021, 05:50 AM #6
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Quote:
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According to Toyota something made a nest under the manifold. Grrrrr. Now I have to submit a claim.
Your auto insurance should cover that without issue.
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