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Camry knock sensor error

Tiny
YLECYOTE
  • MEMBER
  • 2007 TOYOTA CAMRY
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 140 MILES
2007 toyota camry 140k. Check engine light code Knock sensor. Reset and came back on right away. What could cause this other than the obviouse bad sensor or wire?
Monday, February 28th, 2011 AT 2:45 AM

9 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
If you replaced the sensor and checked wiring, it could deal with ignition timing. Has the timing belt ever been replaced?
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Monday, February 28th, 2011 AT 3:25 AM
Tiny
YLECYOTE
  • MEMBER
  • 4 POSTS
No, never changed, never anyathing but serviced since new. What about water in gas or fuel filter?
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Monday, February 28th, 2011 AT 2:00 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Check the owner's manual for when they recommend the timing belt. I will assume that you have had it tuned up if the maintenance schedule has been followed.

I have to ask. Have you checked the knock sensor and the wiring to it? You mentioned that the light came back on. You also asked for ideas other than wiring or the sensor. Are you sure the sensor and wiring is good?
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Monday, February 28th, 2011 AT 4:12 PM
Tiny
YLECYOTE
  • MEMBER
  • 4 POSTS
I have not tested the sensor or wiring but have inspected the wiring and cleaned the conection to the sensor. The engine light comes back on within a few seconds after restarting the car after reset.
As for tune-ups no never touched other than oil changes and air filters. 60 miles from a dealer.
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Monday, February 28th, 2011 AT 8:38 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
If the light keeps coming on for the knock sensor, I think you should check the sensor itself. It is most likely bad. As far as a tune up, if it has 140K on it, it's due but I have some good news, the 07 has a timing chain (not a belt) so that is a good thing. I really feel the sensor is bad. Chances are it has an internal open circuit if the light comes right back on. If you can, check it for continunity to see if power will go through it.
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Tuesday, March 1st, 2011 AT 12:34 AM
Tiny
YLECYOTE
  • MEMBER
  • 4 POSTS
Talked to a toyota tech today that said I was looking at the wrong sensor looks same but further back and that occationally mice get under the intake and chew the wire in a place that I cant see without taking the intake manifold off. So in the morning I will find out if that is the problem and test the sensor as well. Thanks
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Tuesday, March 1st, 2011 AT 1:01 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Let me know what you find. There are so many sensors on cars anymore, it's easy to mix them up.
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Tuesday, March 1st, 2011 AT 2:28 AM
Tiny
AISLEOFVIEW
  • MEMBER
  • 24 POSTS
Gosh, I sure hope I'm not looking at the wrong thing!
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Wednesday, August 6th, 2014 AT 9:10 PM
Tiny
AISLEOFVIEW
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Here's my vin if it helps.

1FAHP2E87DG103069
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Wednesday, August 6th, 2014 AT 9:21 PM

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