Technician A says that the purpose of the intake air temperature (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. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

Question

Quizplus · Accepted Answer

Both technicians A and B are correct. The intake air temperature (IAT) sensor provides the engine computer (PCM) with the temperature of the air entering the engine. This information is used for fuel control (adding or subtracting fuel) and spark timing, depending on the temperature of incoming air.

Technician a Says That the Purpose of the Intake Air