Intake Air Temperature Sensor 1/2 Correlation

Where it lives

For P2199, the description names the sensor as the part involved.

Check these first

• A mismatch between the intake air temperature sensor 1 and 2 readings
• A dirty or faulty intake air temperature sensor
• Wiring or a connector fault on a sensor circuit
• A mass airflow sensor contamination
• An intake leak affecting one sensor

What to do next

1. Read the intake air temperature sensor 1 and 2 on a scan tool
2. Compare the two readings with the engine cold
3. Test the sensor wiring for an open or a short
4. Clean the mass airflow sensor and the intake duct
5. Replace the faulty intake air temperature sensor
6. Clear the code and retest

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