Mazda 6 PCV Sensor (Vapor Valve)

About the piece:

The PCV (Positive Crankcase Ventilation Valve) sensor is an essential part of the Mazda engine's emission control system . It regulates the flow of combustion gases from the crankcase to the intake manifold.

Its function:

• Regulating the flow of gases from the crankcase to be re-burned inside the engine.
• Prevents pressure build-up inside the crankcase, protecting the engine's internal components.
• Reducing harmful emissions by recycling unburned gases.

Symptoms of its damage:

• Increased oil consumption due to gas leakage.
• Decreased engine performance due to air/fuel ratio imbalance.
• Blue smoke from exhaust due to burning oil.