019-059   Intake Manifold Air Temperature Sensor

General Information

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The sensor measures the intake manifold air temperature. The ECM uses this information for the engine protection system.

The N14 sensor is located on the intake manifold.

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The M11 intake air temperature sensor (2) is located on the rear top of the intake manifold.

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Remove

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Lift up on the locking tab and pull the electrical connectors apart.

Remove sensor from engine.

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Install

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Make sure the new sensor has an o-ring.

Install the new sensor into the engine. Tighten the sensor.

Torque Value:  14  n.m  [124 in-lb]

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Push the connectors together until they lock.

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Resistance Check

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Disconnect the sensor from the sensor connector of the engine harness.

Separate the two connectors.

Lift the tab on the connector and pull them apart.

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Use a multimeter to measure the resistance between the two pins of the intake air temperature sensor. The resistance

must be 175 ohms to 244k ohms*. If the resistance is

not correct, replace the sensor. If the resistance is correct, the sensor

must still be checked for a short to ground.

*The resistance value is temperature dependent as follows:


Temperature
Acceptable Resistance Range
°C  °F  (ohms) 
0 32 30k to 36k
25 77 9k to 11k
50 122 3k to 4k
75 167 1350 to 1500
100 212 600 to 675

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Check for Short Circuit to Ground

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Measure the resistance from a pin of the intake air temperature sensor to the engine block ground. The multimeter

must show an open circuit (more than 100k ohms). If the circuit is

not open, replace the sensor.

Connect all components after the repair is complete.

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Last Modified:  10-Feb-2003

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