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Author Question: Technician A says that the purpose of the IAT sensor is to provide the engine computer (PCM) with ... (Read 94 times)

HCHenry

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on: Jun 23, 2018
Technician A says that the purpose of the IAT sensor is to provide the engine computer (PCM) with the temperature of the air entering the engine. Technician B says that the IAT sensor information is used for fuel control (adding or subtracting fuel) and spark timing, depending on the temperature of incoming air. Who is right?
 
  A) Technician A only B) Technician B only
  C) Both technicians A and B D) Neither technician A nor B

Question 2

The IAT is being tested. After the vehicle has been allowed to cool for several hours, a scan tool is used to observe the IAT, and compare it to the engine coolant temperature (ECT). The two temperatures should be within how many degrees F of each other:
 
  A) 10 B) 25 C) 5 D) 15


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paavo

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Reply #1 on: Jun 23, 2018
Answer to Question 1

C

Answer to Question 2

C


HCHenry

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Reply 2 on: Jun 23, 2018
Excellent

sultana.d

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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