OBD Guide
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P111F

Intake Air Temperature Sensor Plausibility

P111F is an OBD-II diagnostic trouble code meaning: Intake Air Temperature Sensor Plausibility. Common causes: intake air temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Unstable engine idling
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Illuminates
  • Problems starting in cold weather

Causes

  • Intake air temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Sensor contamination
  • Problems with the engine ECU

How to Fix

  1. Check the condition of the sensor and its connector
  2. Check the integrity of the wiring to the sensor
  3. Clean the sensor from dirt
  4. Replace the intake air temperature sensor if necessary
  5. Check and update the ECU firmware if necessary

Related codes

P0112P0113P0114

FAQ

What does the P111F code mean?

P111F is an OBD-II diagnostic trouble code that indicates: Intake Air Temperature Sensor Plausibility

What causes a P111F error code?

The most common causes of P111F include: Intake air temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Sensor contamination.

How do I fix a P111F diagnostic trouble code?

To fix P111F: Check the condition of the sensor and its connector. Check the integrity of the wiring to the sensor. Clean the sensor from dirt. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P111F?

Yes, but get it checked soon

How much does it cost to fix P111F?

The estimated repair cost for P111F is $6–33. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat