FE120 L4-4.9L DSL Turbo (2005)
#305 Inspection of boost air temperature sensor
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Place the boost air temperature sensor in a container filled with engine oil.
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Heat the oil to each of the specified temperatures. Stir the oil well while doing so.
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Measure the resistance between terminals 1 and 2.
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If either measurement IS out of specification, replace the sensor.
#318 Inspection of boost pressure sensor
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Apply 5 V DC to terminals 3 and 1.
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Apply air pressure A. Gradually increase it and, while doing so, measure the output voltage occurring at terminals 2 and 1 (see the diagram).
