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AutoCodes – Generic – P0114

P0114 Code - Intake Air Temperature Circuit Intermittent

Quick Answer

The Intake Air Temperature (IAT) sensor is built into Mass Air Flow (MAF) sensor. Common causes include Dirty Air Filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted. 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
P0114 indicates Intake Air Temperature Circuit Intermittent.
Common causes
Common causes include Dirty Air Filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted.
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 31,233
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Jul 13, 2020
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Code P0114 Description

The Intake Air Temperature (IAT) sensor is built into Mass Air Flow (MAF) sensor. The sensor detects intake air temperature and transmits a signal to the Powertrain Control Module (PCM). 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. The Intake Air Temperature signal is used as an input for various systems in the vehicle. It is used by the Powertrain Control Module to assist with the calculation of idle speed, fuel mixture, and spark advance. The Diagnostic Trouble Code (DTC) will set when the PCM detects an erratic signal from the Intake Air Temperature sensor during the system monitor test.
OBDII Code P0114 - Intake Air Temperature Circuit Intermittent - AutoCodes.com
P0114 Code - Intake Air Temperature Circuit Intermittent
What does this mean?

What are the Possible Causes of the DTC P0114?

  • Dirty Air Filter
  • Faulty Intake Air Temperature (IAT) Sensor
  • Intake Air Temperature Sensor harness is open or shorted
  • Intake Air Temperature Sensor circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0114?

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 does this mean?

Code Tech Notes

Before replacing the Mass Air Flow (MAF) sensor, try replacing the air filter and cleaning the Mass Air Flow sensor with Mass Air Flow sensor cleaner. Reset code and drive the vehicle. If the code comes back, it may be necessary to replace the Mass Air Flow sensor.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0114 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 P0114 code?

Need more information on how to fix the P0114 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0114 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 P0114 Code

1. What does the OBDII code P0114 mean?

P0114 indicates an intermittent issue in the intake air temperature (IAT) sensor circuit, where the sensor’s signal to the engine control module (ECM) is erratic or unreliable.

2. What are the common symptoms of the P0114 code?

Symptoms may include poor fuel efficiency, difficulty starting the engine, rough idling, reduced engine performance, and an illuminated check engine light.

3. What causes the P0114 code to appear?

Common causes include a faulty IAT sensor, damaged or corroded wiring or connectors, a loose electrical connection, or issues with the ECM.

4. Can I drive with the P0114 code?

While the car may still be drivable, it’s not recommended as the engine may run inefficiently and cause further damage over time.

5. How do I diagnose the P0114 code?

Start by inspecting the IAT sensor and its wiring for damage or corrosion. Use a multimeter to test the sensor’s resistance and check for proper voltage signals from the ECM.

6. What tools are needed to fix the P0114 code?

You’ll typically need an OBDII scanner, multimeter, and basic tools for inspecting and replacing the IAT sensor or repairing wiring.

7. How do I fix the P0114 code?

Repairs may involve replacing the IAT sensor, repairing damaged wiring or connectors, or cleaning corroded terminals.

8. Can a dirty air filter cause the P0114 code?

While unlikely, a severely clogged air filter can indirectly affect sensor readings. It’s worth checking the air filter as part of routine maintenance.

9. How much does it cost to fix the P0114 code?

Costs vary, but replacing an IAT sensor typically ranges from $50 to $150, including parts and labor. Wiring repairs may cost more depending on the extent of the damage.

10. Can a failing ECM trigger the P0114 code?

Yes, although rare, a malfunctioning ECM can cause incorrect or intermittent signals in the IAT circuit, leading to the P0114 code.

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