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Quest SL
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Engine Control System
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DTC P0127: IAT Sensor
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Component Inspection
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Intake Air Temperature Sensor
Intake Air Temperature Sensor
Check resistance between intake air temperature sensor terminals 5 and 6 under the following conditions.
Fig 1: Resistance Between Intake Air Temperature Sensor Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.
If NG, replace mass air flow sensor (with intake air temperature sensor).
Fig 2: Identifying Intake Air Temperature Sensor Components
Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Acceptable Resistance And Temperature Graph
Courtesy of NISSAN MOTOR CO., U.S.A.