PCV valve replacement Nissan Sentra 2014

This is how to replace a PCV. This one has 170k miles and ran excellent but had occasional hesitation. New plugs at 160k. Just cleaned Throttle body last month. It had a huge carbon ring and had rough idle occasionally. This just fixed an intake manifold leak. The valve allows unburnt gases to be burnt by sending to intake. But if the valve does not close you have an intake manifold leak. Small leaks cause idle issues possibly stalling. Nothing more. Throttle body cleaning video.    • 2014 Nissan Sentra rough idle fix (drive b...