Mazda CX-5 PCV Sensor (Vapor Valve)

About the piece :

The PCV (Positive Crankcase Ventilation Valve) is part of Mazda's positive crankcase ventilation system . It is used to control the exhaust and recirculation of combustion gases from the engine.

His job :

• Regulating the flow of combustion gases into the crankcase.
• Reduce exhaust emissions and improve engine efficiency.
• Maintain balanced pressure inside the crankcase.

Symptoms of its damage :

• Increased oil consumption.
• White or blue smoke coming from the exhaust.
• Engine oil leaking around the vapor valve.