I have heard the knock sensor will not cause the check engine light to go on, is this true, and if so what would the real problem be?
Just wanted to add some more details. 96 maxima – I had to get the entire exhaust replaced, so there were 2 codes, 02, and knock. Fixed exhaust, so 02 code went away, now I have the knock code left. I don’t want to spend $300 to fix the knock, and then have another code come out and need to fix something else. Which is why I asked if the knock would turn the CEL on. I also heard a rumor, that the knock code may have something to do with the MAF.