O2 Sensor Management Flashcard

Front

What does Closed Loop O2 sensor management involve?

Back

Real-time monitoring of oxygen levels in the exhaust to adjust the air-fuel mixture

Front

When does Open Loop O2 sensor management typically occur?

Back

When the vehicle is idling

Front

What is the primary function of EGR valves?

Back

To recycle a portion of exhaust gases to lower combustion temperatures

Front

What is an advantage of internal EGR?

Back

Its compactness because it works with a system of engine valves and ports instead of external devices.

Front

What is the primary function of EVAP systems?

Back

To capture and store fuel vapors from the fuel tank

Front

What is a disadvantage of EVAP systems?

Back

They can be challenging to diagnose and repair when faults occur.

Front

What is the advantage of a catalytic converter?

Back

Converts harmful pollutants into less harmful emissions.

Front

What is a disadvantage of using catalytic converters?

Back

They require precious metals like platinum, palladium, and rhodium.

Front

What does a catalytic converter do to the engine emissions?

Back

It converts engine emissions into water, carbon dioxide, and nitrogen.

Front

What is the advantage of using Diesel Particulate Filters (DPF)?

Back

Traps and removes harmful diesel particulate matter, reducing air pollution