Asked by Annet Jamrych on May 13, 2024
Verified
Which of the following is NOT a part of OBD II comprehensive monitoring?
A) catalytic converter operation
B) fuel delivery control
C) exhaust gas recirculation
D) fuel system pressure
Catalytic Converter Operation
The process by which a catalytic converter reduces harmful emissions from an engine's exhaust, by catalyzing a redox reaction that transforms pollutants into less harmful substances.
Fuel Delivery Control
The system or method used in managing the flow of fuel to an engine, ensuring the correct air-fuel mixture for optimal performance and efficiency.
Exhaust Gas Recirculation
A method to reduce nitrogen oxide emissions in petrol/gasoline and diesel engines by recirculating a portion of an engine's exhaust gas back to the engine cylinders.
- Acknowledge the principal goal and components of the Onboard Diagnostics II (OBD II) system.
Verified Answer
ME
Mohamed El-SaeedMay 15, 2024
Final Answer :
D
Explanation :
OBD II (On-Board Diagnostics II) comprehensive monitoring includes various systems and components of a vehicle to ensure they are operating correctly and efficiently. This includes monitoring the catalytic converter operation to reduce emissions, fuel delivery control to ensure the correct air-fuel mixture, and exhaust gas recirculation to reduce NOx emissions. However, fuel system pressure, while important for the vehicle's operation, is not specifically part of the OBD II comprehensive monitoring criteria, which focuses more on emission control and engine performance.
Learning Objectives
- Acknowledge the principal goal and components of the Onboard Diagnostics II (OBD II) system.