AUT-208 Engine Management Mastery Flashcard

Front

What is the role of the Engine Control Unit (ECU) in an automotive engine?

Back

The ECU processes data from various sensors to manage engine functions, including adjusting ignition timing based on driving conditions.

Front

How does the fuel injection system contribute to engine performance?

Back

The fuel injection system mixes fuel with air to create a combustible mixture, essential for engine operation.

Front

What is throttle response and how does it affect fuel economy?

Back

Throttle response refers to how quickly the engine responds to accelerator input; slower throttle response can improve fuel economy by reducing rapid acceleration.

Front

What are the symptoms of a malfunctioning throttle position sensor?

Back

A malfunctioning throttle position sensor can cause erratic or poor throttle response, leading to decreased fuel efficiency.

Front

What is the function of a catalytic converter in an automotive engine?

Back

The catalytic converter reduces harmful emissions by converting exhaust gases, while oxygen sensors monitor its efficiency.

Front

What types of sensors does the ECU rely on to adjust engine parameters?

Back

The ECU relies on various sensors, including oxygen sensors, throttle position sensors, and mass airflow sensors.

Front

How does the ECU use data from oxygen sensors?

Back

The ECU uses data from oxygen sensors to adjust the air-fuel mixture for optimal combustion and emissions control.

Front

What is the significance of the air-fuel ratio in engine management?

Back

The air-fuel ratio is crucial for efficient combustion; an optimal ratio ensures maximum power output and minimal emissions.

Front

How can a faulty fuel injection system impact engine performance?

Back

A faulty fuel injection system can lead to poor fuel atomization, resulting in rough idling, reduced power, and increased emissions.

Front

What is the relationship between throttle position and engine load?

Back

Throttle position indicates the driver's demand for power, which the ECU uses to adjust engine load and performance.