Hello, I’m new here and I’m stuck a bit .. so I ran a obd test on my 2001 is300 and the knock sensor gave out I bought the part at autozone but the parts are different the thread is way bigger than the other one .. why is this I went back to autozone and they said it’s the right part which I don’t idk if it is or not I spent $180 on the sensor. Are there two sensors ?.