Engine Management Quiz 2

What is the function of the intake air temperature sensor in the engine management system?

• Sending information to the ECU about the engine speed

• Measuring the pressure in the intake manifold

• Measuring the temperature of the exhaust

• Measuring the mass of air passing into the engine

What does the air flow meter from Bosch measure in the engine management system?

• The mass of air passing into the engine

• The engine speed

• The pressure in the intake manifold

• The temperature of the intake air

What does the crankshaft position sensor measure in the engine management system?

• The pressure in the intake manifold

• The position of the crankshaft

• The mass of air passing into the engine

• The temperature of the intake air

What does the oxygen sensor in the exhaust help the ECU calculate?

• The throttle position

• The intake air temperature

• The engine speed

• The air-fuel ratio

What is the function of the knock sensor in the engine management system?

• Sending information to the ECU about the engine speed

• Measuring the temperature of the exhaust

• Measuring the mass of air passing into the engine

• Monitoring inappropriate combustion

What does the throttle position sensor measure in the engine management system?

• The amount of oxygen in the exhaust

• The road speed

• How far the driver has the throttle open

• The engine speed

What is the primary output of the engine management system to the fuel injector?

• Road speed

• Fuel injector pulse width

• Ignition timing

• Throttle position

What is the primary output of the engine management system to the ignition coil?

• Ignition timing

• Road speed

• Fuel injector pulse width

• Throttle position

What does the ECU look up in the maps to determine the appropriate injection duration?

• Injection duration, engine speed, and throttle valve angle

• Engine speed, road speed, and throttle position

• Throttle position, intake air temperature, and oxygen level

• Fuel injector pulse width, ignition timing, and knock level

What is the purpose of the programmable ECU mentioned in the text?

• Setting up the map for injection duration

• Calculating the air-fuel ratio

• Measuring the mass of air passing into the engine

• Monitoring the road speed