AUT-208 Engine Management Mastery Flashcard

Front

What is the function of a throttle position sensor in an engine management system?

Back

The throttle position sensor monitors the position of the throttle valve and sends this information to the engine control unit (ECU) to manage engine performance.

Front

How does a malfunctioning throttle position sensor affect vehicle performance?

Back

It can cause erratic or poor throttle response and negatively impact fuel efficiency.

Front

What does the Check Engine Light (CEL) indicate in a vehicle?

Back

The Check Engine Light is a general indicator that the vehicle's engine management system has detected a problem that may generate a Diagnostic Trouble Code (DTC).

Front

What are Diagnostic Trouble Codes (DTCs)?

Back

DTCs are codes generated by the vehicle's engine management system to identify specific issues or malfunctions.

Front

What is the role of oxygen sensors in engine management?

Back

Oxygen sensors monitor the oxygen level in the exhaust gases to adjust the fuel-air mixture for optimal combustion.

Front

Why are oxygen sensors important for fuel efficiency?

Back

They help ensure the correct fuel-air mixture, which maximizes combustion efficiency and reduces emissions.

Front

What is the purpose of adjusting ignition timing in an engine?

Back

Adjusting ignition timing maximizes the power output and efficiency of the engine by ensuring the fuel-air mixture ignites at the optimal moment.

Front

How does ignition timing affect engine performance?

Back

Proper ignition timing can enhance engine power, improve fuel efficiency, and reduce emissions.

Front

Where are oxygen sensors typically located in a vehicle?

Back

Oxygen sensors are usually located in the exhaust system, both before and after the catalytic converter.

Front

What is the significance of the location of oxygen sensors in the exhaust system?

Back

Their location allows them to measure the oxygen content of the exhaust gases, which is crucial for optimizing fuel combustion.