Practice question

Which sensor in an electronic engine management system measures the mass flow rate of air entering the intake manifold to help the ECU calculate the correct fuel injection volume?

  1. Throttle Position Sensor (TPS)
  2. Mass Air Flow (MAF) sensor
  3. Oxygen (O2) Sensor
  4. Crankshaft Position Sensor (CKP)

Answer: B — Mass Air Flow (MAF) sensor

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