1992 Nissan Pathfinder Knock Sensor

Tiny
GLJOHNSON
  • MEMBER
  • 1992 NISSAN PATHFINDER
  • 200,000 MILES
Ran the codes on my 1992 Pathfinder, 3.0L V6, and it came up with the knock sensor code.

As you may know, the sensor is not in an easy place to replace and could cost quite a bit in labor. I saw where people have relocated it, and that seems to be the only option considering the costs could outweigh the benefits for my old car.

My question is: If I relocate it to the top of the engine and splice the wires in, will it have any effect on the readings the sensor gets from the combustion chamber?

Thanks!
Monday, September 9th, 2013 AT 11:36 AM

1 Reply

Tiny
TY ANDERSON
  • MECHANIC
  • 718 POSTS
I would not recommend relocating the knock sensor on this v-style engine. The sensor is sensitive and needs to mounted close to all the combustion chambers as possible.
This sensor detects pre detonation (which can damage engines very quickly) which the vehicle's computer uses to monitor and makes adjustments to prevent pre detonation. Stick with what the engineers determined the proper location for the knock sensor. So, my answer is yes, it will effect the sensor's ability to sens pre detonation.
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Monday, September 9th, 2013 AT 9:59 PM

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