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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

While diagnosing the cause of a hard starting condition: Technician A checks the ECT sensor. Technician B checks the MAP sensor. 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:

    While diagnosing the cause of a hard-starting condition:

    Technician A checks the ECT sensor.

    Technician B checks the MAP sensor.

    ECT sensor helps in knowing the temperature of an engine. It is a thermistor used for regulating various functions of the engine. It helps in maintaining and controlling the fuel injection, ignition timing, and variable valve timing. ECT sensor is present in the passage of the engine coolant. It is located just before the thermostat. If the ECT sensor is defective, it will affect various components of an engine. ECT sensor can affect the system in the following ways:

    1. Starting an engine becomes hard.
    2. Affect the air-fuel ratio...

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