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Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315

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BuyFindarrow_forward

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315
Textbook Problem

When testing a frequency varying MAF: Technician A says that the frequency should increase with an increase in engine speed. Technician B says that when observed on a lab scope, the signal from the sensor should be a square w’ave. Who is correct?

  1. Technician A

  • Technician B
  • Both A and B
  • Neither A nor B
  • To determine

    The technician with the correct approach.

    Explanation

    Given information:

    When testing a frequency varying MAF:

    Technician A says that the frequency should increase with an increase in engine speed.

    Technician B that when observed on a lab scope, the signal from the sensor from the sensor should be a square wave.

    Mass air flow sensor is used for measuring the air flow entering the engine. Engine load is calculated by measuring the intake air volume. Fuel injection, ignition system, and shift timing are controlled by using the engine load in an automatic transmission. It is present inside the assembly of the air cleaner and throttle plate...

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