MX5 PCV-valve

A PCV valve for your Mazda MX5 NB (1998 - 2000) with a 1.8l engine.

With the help of this valve, unburned gasoline is transported back into the intake manifold for a new ignition cycle (a piston never closes 100%).

If the PCV valve is faulty then the pressure in other parts of the engine is often incorrect.
When replacing this part, you should also replace the rubber collar that holds the valve. And a recommendation is to give the valve hose attention as well.