KNOCK SENSOR

1996 Nissan Pathfinder

Tiny

scott jash

March, 30, 2009 AT 8:11 PM

Engine Performance problem
1996 Nissan Pathfinder 6 cyl Four Wheel Drive Automatic

Hello,
Recently I took my 96 Nissan Pathfinder into Nissan for service and they told me I had a bad knock sensor. I didnt want to pay them $1000 to do it so I did it myself. When I finally tore the engine down and tested the sensor, It measured good according to the Haynes manual. I did notice breaks in the wire insulation on the wire of the connector cable. Is it possible that the wire caused the code to come up or is a bad knock sensor just testing good with the engine not running?

FOUND 35 RELATED QUESTIONS

3 Answers

Tiny

James W.

March, 30, 2009 AT 10:39 PM

It's ENTIRELY possible that it was the harness and not the sensor. On Nissans, we get more bad harness connections than we do bad sensors

Tiny

scott jash

March, 31, 2009 AT 7:27 AM

Thanks for the quick response. One more question before I put it back together. There is only one wire on the connector for the knock sensor. Is this correct?

Tiny

James W.

March, 31, 2009 AT 12:35 PM

Yes, just a single wire. The sensor reads voltage to ground when detonation occurs. You can check the sensor with an analog voltmeter set on the 2 volt scale. Hook the meter up between the sensor and the connector and tap close to the sensor. The meter should " jump" .

Please login or register to post a reply.

 Step by Step video GMC Yukon XL 2000-2006
Code Read Retrieval/Clear Mercedes Benz
How to gather codes Ford Explorer
Code Read Retrieval/Clear Honda Civic
Code Read Retrieval/Clear Mercedes-Benz C230
How to read codes Chevrolet Blazer
Read Codes Like a Pro