Trouble code for output speed sensor and knock sensor

Tiny
SAMUELM
  • MEMBER
  • 2000 NISSAN ALTIMA
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 61,500 MILES
No issues with driving. Speedometer also giving accurate read (tested against a gps). I am due for an inspection and in general would like to keep the car in good health. I switched the knock sensor a year ago and the check engine light deleted the codes and it stayed off. About 3 months ago it gave me the output speed sensor code, I put in a new sensor - it didn't help. The knock sensor code came about a month after that.
Tuesday, February 22nd, 2022 AT 2:02 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Let's start with getting the actual codes that you have and then we can provide the testing and info needed to figure this out.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

In the meantime, here are a couple guides that will help with this info of each system:

https://www.2carpros.com/articles/how-a-knock-sensor-works

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

I assume we are going to be dealing with a wiring issue or a control module but let's start with getting the actual codes and we can go from there.

Thanks
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Wednesday, February 23rd, 2022 AT 5:35 PM

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