Where is the knock sensor located?

Here is a guide that will help with the idea of a knock sensor and what it does:

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

However, this engine does not use a knock sensor. It calculates if the engine is knocking based on crank sensor acceleration and intake temp info.

Please see the info below and let us know if you need more info.

If you are getting spark knock then that can be caused by a number of different issue and most commonly caused by poor fuel quality.

I would suggest putting high test in the tank and then a bottle of octane booster and see if it goes away. If so then you have a fuel issue that may be causing issues in the injectors.

Please run through this material and let us know if you have questions.

Thanks