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SensorsSeverity Low: usually safe to drive

P0110Intake Air Temperature Sensor 1 Circuit

What it means

The ECU has detected an electrical fault in the intake air temperature sensor circuit. The ECU uses intake air temperature to correct fuelling and ignition timing.

Symptoms

  • Check engine light
  • Usually little effect on driving
  • Possibly harder starting or slightly higher fuel use

Common causes

  • Open or shorted wiring between the sensor and the ECU
  • Corroded or loose connector
  • Failed intake air temperature sensor

What to check first

  1. Compare the live reading with the real temperature (IR thermometer)
  2. Measure the sensor resistance and compare it with the temperature table
  3. Check the 5 V pull-up and the ground at the connector
Can I drive with P0110? Usually yes. P0110 rarely affects how the car drives, but it keeps the check engine light on and can fail an emissions test.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

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P0110: questions and answers

What does P0110 mean?

P0110: Intake Air Temperature Sensor 1 Circuit. The ECU has detected an electrical fault in the intake air temperature sensor circuit. The ECU uses intake air temperature to correct fuelling and ignition timing.

What are the symptoms of P0110?

Check engine light. Usually little effect on driving. Possibly harder starting or slightly higher fuel use.

What causes P0110?

Open or shorted wiring between the sensor and the ECU. Corroded or loose connector. Failed intake air temperature sensor.

How do you diagnose P0110?

1. Compare the live reading with the real temperature (IR thermometer) 2. Measure the sensor resistance and compare it with the temperature table 3. Check the 5 V pull-up and the ground at the connector

Can I drive with P0110?

Usually yes. P0110 rarely affects how the car drives, but it keeps the check engine light on and can fail an emissions test.