Engine-CodesFord – P1115 2009 Ford Fusion

P1115 2009 Ford Fusion Code - Intake Air Temperature Sensor 2 Circuit High

Quick Answer

The P1115 code for a 2009 Ford Fusion indicates a problem with the Intake Air Temperature Sensor 2 Circuit being too high. Common causes include Faulty Intake Air Temperature Sensor, Wiring or connector issues in the sensor circuit, ECM software or hardware problems. 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
P1115 2009 Ford Fusion indicates Intake Air Temperature Sensor 2 Circuit High.
Common causes
Common causes include Faulty Intake Air Temperature Sensor, Wiring or connector issues in the sensor circuit, ECM software or hardware problems.
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 P1115 2009 Ford Fusion Description

The P1115 code for a 2009 Ford Fusion indicates a problem with the Intake Air Temperature Sensor 2 Circuit being too high. This sensor is responsible for measuring the temperature of the air entering the engine. The Engine Control Module (ECM) uses this information to adjust the air-fuel mixture for optimal combustion. When the sensor detects a high voltage signal, it triggers the P1115 code.

OBDII Code P1115 2009 Ford Fusion - Intake Air Temperature Sensor 2 Circuit High
P1115 2009 Ford Fusion Code - Intake Air Temperature Sensor 2 Circuit High

Common Causes of P1115 2009 Ford Fusion

  1. Faulty Intake Air Temperature Sensor
  2. Wiring or connector issues in the sensor circuit
  3. ECM software or hardware problems
  4. Intake air leaks near the sensor
  5. Extreme temperatures affecting sensor readings

Symptoms of P1115 2009 Ford Fusion

  1. Check Engine Light illuminated
  2. Reduced fuel efficiency
  3. Engine misfires
  4. Rough idling
  5. Stalling or hesitation during acceleration

How to Fix P1115 2009 Ford Fusion

  1. Begin by locating the Intake Air Temperature Sensor 2 on the intake manifold.
  2. Inspect the sensor, wiring, and connector for any visible damage or corrosion.
  3. Test the sensor using a multimeter to check for proper resistance and voltage readings.
  4. If the sensor is faulty, replace it with a new OEM sensor.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1115 2009 Ford Fusion

The cost of repairing a P1115 code on a 2009 Ford Fusion can vary depending on the specific cause of the issue. In general, the price of a new Intake Air Temperature Sensor can range from $50 to $100. Labor costs at an auto repair shop can add an additional $80 to $150 per hour. Overall, the total repair cost for this issue is typically between $150 and $300, but it's recommended to check with local auto repair shops for more accurate pricing based on your location and vehicle specifics.

Tech Notes for P1115 2009 Ford Fusion

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 P1115 2009 Ford Fusion Code

1. What are the common symptoms of OBDII code P1115 on a 2009 Ford Fusion?

- Common symptoms include poor engine performance, reduced fuel efficiency, and potential engine stalling.

2. What does the OBDII code P1115 on a 2009 Ford Fusion indicate?

- The code P1115 indicates a problem with the Intake Air Temperature Sensor 2 Circuit showing a high voltage.

3. What are the possible causes of the Intake Air Temperature Sensor 2 Circuit High code on a 2009 Ford Fusion?

- Possible causes include a faulty intake air temperature sensor, wiring issues, or a problem with the sensor's circuit.

4. How can I diagnose the Intake Air Temperature Sensor 2 Circuit High issue on my 2009 Ford Fusion?

- You can use a multimeter to test the intake air temperature sensor's resistance and voltage to determine if it is functioning correctly.

5. Can I still drive my 2009 Ford Fusion with the P1115 code present?

- It is not recommended to drive the vehicle with the P1115 code active, as it can lead to further engine damage or poor performance.

6. How can I repair the Intake Air Temperature Sensor 2 Circuit High issue on my 2009 Ford Fusion?

- Repair options include replacing the intake air temperature sensor, repairing any damaged wiring, or addressing any circuit issues.

7. Will resetting the OBDII code P1115 on my 2009 Ford Fusion make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

8. Is it possible to clean the intake air temperature sensor to fix the P1115 code on a 2009 Ford Fusion?

- In some cases, cleaning the sensor may temporarily improve its performance, but if the code persists, replacement is usually necessary.

9. Can extreme weather conditions cause the Intake Air Temperature Sensor 2 Circuit High code on a 2009 Ford Fusion?

- Yes, extreme temperatures can sometimes affect the intake air temperature sensor's readings, leading to the P1115 code.

10. How much does it typically cost to repair the Intake Air Temperature Sensor 2 Circuit High issue on a 2009 Ford Fusion?

- The cost of repair can vary depending on the specific problem, but it generally ranges from $100 to $300 for parts and labor.

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