AutoCodes – Generic – P111F

P111F Code - Intake Air Temperature Sensor Plausibility

Quick Answer

The Intake Αir Temperature (IΑT) sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM). Common causes include Faulty Intake Air Temperature Sensor, Intake Air Temperature Sensor harness is open or shorted, Intake Air Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P111F indicates Intake Air Temperature Sensor Plausibility.
Common causes: Common causes include Faulty Intake Air Temperature Sensor, Intake Air Temperature Sensor harness is open or shorted, Intake Air Temperature Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,491

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 25, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P111F Description

The Intake Αir Temperature (IΑT) sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM). The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases in response to the temperature rise.

OBDII Code P111F - Intake Air Temperature Sensor Plausibility - AutoCodes.com — P111F Code - Intake Air Temperature Sensor Plausibility

What does this mean?

What are the Possible Causes of the DTC P111F?

Faulty Intake Air Temperature Sensor
Intake Air Temperature Sensor harness is open or shorted
Intake Air Temperature Sensor circuit poor electrical connection

How to Fix the DTC P111F?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P111F code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P111F code?

Need more information on how to fix the P111F code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P111F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P111F BMW — Intake Air Temperature Sensor Plausibility
P111F MINI — Intake Air Temperature Sensor Plausibility

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P111F Code

1. What are the common symptoms of OBDII code P111F (Intake Air Temperature Sensor Plausibility)?

The common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and in some cases, the Check Engine Light may illuminate.

2. What can cause the OBDII code P111F to trigger?

The code P111F may be triggered by a faulty intake air temperature sensor, wiring issues, a dirty sensor, or a problem with the sensor's connection to the ECM.

3. How can I diagnose the OBDII code P111F at home?

You can diagnose the code P111F by using an OBDII scanner to read the code, visually inspecting the intake air temperature sensor and its wiring, and testing the sensor's resistance.

4. Can a dirty air filter cause the OBDII code P111F to appear?

Yes, a dirty air filter can restrict airflow to the intake air temperature sensor, causing incorrect readings and potentially triggering the code P111F.

5. Is it safe to drive with the OBDII code P111F present?

It is not recommended to drive with the code P111F present, as it can lead to poor engine performance and decreased fuel efficiency. It is best to address the issue promptly.

6. How do I repair the OBDII code P111F related to the intake air temperature sensor?

To repair the code P111F, you may need to replace the intake air temperature sensor, clean the sensor and its connections, or repair any damaged wiring.

7. Can a disconnected or loose intake air temperature sensor cause the OBDII code P111F?

Yes, a disconnected or loose intake air temperature sensor can cause the code P111F to trigger due to improper readings being sent to the ECM.

8. Are there any specific vehicles known to have issues with the OBDII code P111F?

While this code can appear in various vehicle makes and models, some vehicles with known intake air temperature sensor issues include certain Honda, Ford, and GM vehicles.

9. Can extreme weather conditions affect the intake air temperature sensor and trigger the OBDII code P111F?

Yes, extreme hot or cold weather conditions can affect the intake air temperature sensor readings, potentially leading to the code P111F being triggered.

10. How much does it typically cost to repair the OBDII code P111F related to the intake air temperature sensor?

The cost of repairing the code P111F can vary depending on the vehicle make and model, the extent of the issue, and whether you choose to replace the sensor yourself or have it done by a professional. Costs can range from $50 to $200 or more.