97 A/T sentra stalling

[2.4niz]

I have a 97 sentra with the 1.6 litre. My problem is intermittent stalling. It doesn't happen all the time, but the car will just die at a stop sign, the alternator and fuel filter were replaced very recently, and the fuel filter took some of the stumbling idle away. I think it may just be the IACV, but I'm not exactly sure where it is, and how to clean it, and help would be great, thanks!