We should start with what the actual code was. Can you provide the code and then we can be sure to point you in the right direction?
As for the knock sensor, here is a guide that will help with explaining what it is and what can happen:
https://www.2carpros.com/articles/how-a-knock-sensor-works
Lower octane fuel can cause pinging and that is what the knock sensor is supposed to sense and adjust the fuel to address the ping/detonation.
Please check the codes again and let us know what the code is so that we can be sure we are doing the correct testing.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
Let me know what questions you have. Thanks
Dec 23, 2021 at 5:50 PM
