Engine-CodesFord – P1114 1998 Ford F150

P1114 1998 Ford F150 Code - Intake Air Temperature Sensor 2 Circuit Low

Quick Answer

The P1114 diagnostic trouble code (DTC) for a 1998 Ford F150 indicates a problem with the Intake Air Temperature Sensor 2 Circuit being too low. Common causes include Faulty IAT Sensor: The most common cause of the P1114 code is a malfunctioning Intake Air Temperature Sensor 2, Wiring Issues: Damaged or corroded wiring connecting the IAT sensor to the ECM can lead to circuit low readings, Poor Electrical Connection: Loose or poor electrical connections at the sensor or ECM can cause voltage or resistance issues. 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
P1114 1998 Ford F150 indicates Intake Air Temperature Sensor 2 Circuit Low.
Common causes
Common causes include Faulty IAT Sensor: The most common cause of the P1114 code is a malfunctioning Intake Air Temperature Sensor 2, Wiring Issues: Damaged or corroded wiring connecting the IAT sensor to the ECM can lead to circuit low readings, Poor Electrical Connection: Loose or poor electrical connections at the sensor or ECM can cause voltage or resistance issues.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P1114 1998 Ford F150 Description

The P1114 diagnostic trouble code (DTC) for a 1998 Ford F150 indicates a problem with the Intake Air Temperature Sensor 2 Circuit being too low. The Intake Air Temperature (IAT) sensor is a crucial component of the engine's air intake system, responsible for measuring the temperature of the incoming air. This information is used by the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion and engine performance.

OBDII Code P1114 1998 Ford F150 - Intake Air Temperature Sensor 2 Circuit Low
P1114 1998 Ford F150 Code - Intake Air Temperature Sensor 2 Circuit Low

Common Causes of P1114 1998 Ford F150

  1. Faulty IAT Sensor: The most common cause of the P1114 code is a malfunctioning Intake Air Temperature Sensor 2.
  2. Wiring Issues: Damaged or corroded wiring connecting the IAT sensor to the ECM can lead to circuit low readings.
  3. Poor Electrical Connection: Loose or poor electrical connections at the sensor or ECM can cause voltage or resistance issues.
  4. ECM Malfunction: In rare cases, a malfunctioning ECM can incorrectly interpret the IAT sensor data, triggering the code.

Symptoms of P1114 1998 Ford F150

  1. Check Engine Light: The most common symptom associated with the P1114 code is the illumination of the Check Engine Light on the vehicle's dashboard.
  2. Poor Engine Performance: The engine may experience hesitation, rough idling, or a lack of power due to incorrect air-fuel mixture adjustments.
  3. Decreased Fuel Efficiency: A faulty IAT sensor can lead to decreased fuel efficiency as the engine may not be operating at optimal settings.
  4. Emission Issues: Incorrect air-fuel mixture can result in increased emissions, potentially causing the vehicle to fail emissions tests.

How to Fix P1114 1998 Ford F150

  1. Diagnose the Issue: Use a scan tool to retrieve the DTC and verify the IAT sensor 2 circuit low condition.
  2. Inspect Wiring and Connections: Check the wiring harness for any damage or corrosion, and ensure all connections are secure.
  3. Replace IAT Sensor: If the sensor is faulty, replace it with a new one following manufacturer guidelines.
  4. Clear DTCs: Clear the DTC using the scan tool and test drive the vehicle to ensure the issue has been resolved.
  5. Verify Repair: Use the scan tool to check for any remaining DTCs and confirm that the engine is operating correctly.

Cost to Fix P1114 1998 Ford F150

The cost of repairing a P1114 code on a 1998 Ford F150 can vary depending on the specific cause of the issue. In general, the price of a new Intake Air Temperature Sensor 2 can range from $20 to $50. Labor costs for this repair can vary, but on average, you can expect to pay between $100 and $200 for the replacement and diagnostic work. Keep in mind that prices may differ based on location, the complexity of the repair, and the rates of the auto repair shop you choose. It's recommended to obtain quotes from multiple shops to ensure you're getting a fair price for the repair.

Tech Notes for P1114 1998 Ford F150

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor. Monitor the IAT on a scan tool. Look for sudden changes in the reading when the harness is wiggled or the sensor is tapped.

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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 P1114 1998 Ford F150 Code

What does the OBDII code P1114 mean on a 1998 Ford F150?

P1114 indicates that the Intake Air Temperature (IAT) Sensor 2 circuit is reading a voltage lower than expected, suggesting an issue with the sensor or its circuit.

What are the symptoms of a P1114 code on a 1998 Ford F150?

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

What causes a P1114 code on a 1998 Ford F150?

Common causes include a faulty IAT sensor, damaged wiring or connectors, or a malfunctioning Engine Control Module (ECM).

How do you diagnose a P1114 code on a 1998 Ford F150?

Start by visually inspecting the IAT sensor and its wiring for damage. Use a multimeter to check the sensor’s resistance and voltage. Confirm the ECM is functioning properly if no wiring issues are found.

Can you drive with a P1114 code on a 1998 Ford F150?

While the vehicle may still be drivable, it’s not recommended as it can lead to poor fuel economy, performance issues, and potential long-term engine damage.

How do you fix a P1114 code on a 1998 Ford F150?

Repairs may include replacing the IAT sensor, repairing or replacing damaged wiring, or in rare cases, replacing the ECM.

Where is the Intake Air Temperature Sensor 2 located on a 1998 Ford F150?

The IAT Sensor 2 is typically located within or near the intake air duct or air filter housing. Consult the vehicle’s service manual for exact placement.

What tools are needed to fix a P1114 code on a 1998 Ford F150?

You’ll need a basic OBDII scanner, a multimeter, and possibly tools like pliers, screwdrivers, and replacement parts such as a new IAT sensor.

How much does it cost to fix a P1114 code on a 1998 Ford F150?

Repair costs vary but typically range between $50 and $200, depending on whether you replace the IAT sensor yourself or have a mechanic perform the repair.

Can a dirty air filter cause a P1114 code on a 1998 Ford F150?

While uncommon, a severely clogged air filter could affect the IAT sensor readings and contribute to the code. Always check and replace the air filter if necessary.

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