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The Fuel Injection Quiz
by Staff
It's no secret -- your car needs fuel. Everyone knows that you put fuel into the tank to keep the car running. But have you ever stopped to think about how the fuel gets from the fuel tank into your engine? Take our quiz to find out how much you know about fuel injection systems.

According to the article, what was the last car sold in the United States with a carburetor?

  • the 1980 Datsun B210
  • the 1985 Yugo GV
  • the 1990 Subaru Justy

As the automobile evolved, the carburetor got more and more complicated, trying to handle all of the operating requirements. How many different circuits did a carburetor need to handle some of the tasks?

  • three
  • five
  • seven

In a process called closed loop control, oxygen sensors monitor the amount of oxygen in the exhaust and report to this module, which uses the information to adjust the air-to-fuel ratio in real-time. What is the name of the module?

  • oxygen control unit (OCU)
  • transmission control unit (TCU)
  • engine control unit (ECU)

Initially, carburetors were replaced with ______ systems that incorporated electrically controlled fuel-injector valves into the ______.

  • intake manifold fuel injection systems; intake manifold
  • combustion chamber fuel injection systems; combustion chamber
  • throttle body fuel injection systems; throttle body

Multi-port fuel injection systems have a fuel injector for each cylinder, usually positioned so that they spray directly at what?

  • the intake valve
  • the exhaust valve
  • the piston

This component is an electronically controlled valve that is capable of opening and closing many times per second. What is the name of the component?

  • a voltage sensor
  • a fuel injector
  • a spark plug

The amount of time the fuel injector stays open is called what?

  • pulse width
  • pulse height
  • pulse girth

When the fuel injectors are mounted in the intake manifold, the pressurized fuel is supplied to the injectors by a pipe called the ______.

  • fuel pump
  • fuel rail
  • fuel tank

What is the name of the sensor that monitors the pressure of the air in the intake manifold?

  • the mass airflow sensor
  • the oxygen pressure sensor
  • the manifold absolute pressure sensor

There are two main types of control for multi-port systems: The fuel injectors can all open at the same time, or each one can open just before the intake valve for its cylinder opens. What is this called?

  • sequential multi-port fuel injection
  • throttle body fuel injection
  • central fuel injection