Nissan Repair: sometimes stalls at idle, nissan altima, knock sensor

Question
97 Nissan Altima GXE with AT will sometimes stall at idle. A/C on seems to increase stalling, but it will run okay sometimes with the A/C on. There is a trouble code P0325, but no MIL light. It does usually hesitate slightly on acceleration. I was thinking MAF sensor, but could it be just the knock sensor, or both?

Answer
Tim,

The code is for the knock sensor and I would replace it even though it is a pending code and not setting the MIL.  Reset the computer after you replace the sensor and you should be fine.  rockauto.com courtesyparts.com autopartswarehouse.com and other on-line sources are great to get the part cheap.