DTC P0325

[TacitBlue]

I've had some EVAP code issues, but as of now, the check engine light is off (knock on wood). My question is, in the shop manual, it says a knock sensor fault doesn't trigger the check engine light, but there is a DTC for the check knock sensor (P0325), every time I got an EVAP code, the knock sensor code was always there also (P0325). When I do work on the car to fix the EVAP system, the knock sensor code never comes on by itself. The time I had the car at the dealer for the knock sensor and EVAP code, they only got the EVAP code. What's going on here? I don't hear or feel any engine knocking, what's the deal with the knock sensor not setting off the check engine light, but there is a DTC code for it???

[Towncivilian]

The DTC for P0325 is thrown when knock is detected. I'd clear it and see if it returns. Do you run anything except 87 octane in your Pathfinder?

[TacitBlue]

I don't have a DTC for knock sensor on now. I can't clear individual codes, only all or none. The DTC for the knock sensor would only come on with varying EVAP codes. I never did any work to address the knock sensor code, but I did do work to address the EVAP codes and sometimes the check engine light would stay off for a couple hundred miles. I'm wondering why the check engine light isn't coming for just the knock sensor code after a drive cycle. I use 87 octane fuel.