D&R Ignition Management Quiz 2

What is the primary function of the ECU in a spark ignition engine?

• Control fuel injection

• Monitor exhaust emissions

• Control ignition timing

• All of the above

Which sensor measures the amount of air entering the engine?

• Oxygen sensor

• Throttle position sensor

• Mass airflow sensor

• Coolant temperature sensor

What does a high fuel trim value indicate?

• Rich fuel mixture

• Lean fuel mixture

• Normal operation

• Faulty sensor

Which component is responsible for generating the spark in a spark ignition engine?

• Fuel injector

• Ignition coil

• ECU

• Oxygen sensor

What is the purpose of the knock sensor?

• Detect engine misfires

• Measure air-fuel ratio

• Detect engine knocking

• Control idle speed

Which waveform represents a healthy ignition coil signal?

• Waveform A

• Waveform B

• Waveform C

• Waveform D

What does the throttle position sensor (TPS) measure?

• Engine speed

• Throttle angle

• Air temperature

• Fuel pressure

Which component adjusts the air-fuel mixture in response to engine load?

• Oxygen sensor

• Mass airflow sensor

• Fuel injector

• ECU

What is the function of the camshaft position sensor?

• Measure engine speed

• Determine camshaft position

• Control fuel injection timing

• Monitor exhaust emissions

Which part of the ignition system is labeled as ‘A’ in the diagram below?

• Spark plug

• Ignition coil