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P1112 2007 Ford Fusion Code - Intake Air Temperature Sensor Intermittent Condition

Quick Answer

The P1112 diagnostic trouble code for a 2007 Ford Fusion indicates an intermittent condition with the Intake Air Temperature (IAT) sensor. Common causes include Faulty IAT sensor, Loose or damaged wiring/connectors to the IAT sensor, Intake air leaks near the IAT sensor. 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
P1112 2007 Ford Fusion indicates Intake Air Temperature Sensor Intermittent Condition.
Common causes
Common causes include Faulty IAT sensor, Loose or damaged wiring/connectors to the IAT sensor, Intake air leaks near the IAT sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P1112 2007 Ford Fusion Description

The P1112 diagnostic trouble code for a 2007 Ford Fusion indicates an intermittent condition with the Intake Air Temperature (IAT) sensor. The IAT sensor is a crucial component of the vehicle's engine management system, as it measures the temperature of the air entering the engine. This information is used by the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion and performance. An intermittent condition with the IAT sensor means that the sensor is not providing consistent or accurate readings to the ECM, which can lead to various issues with engine performance and efficiency.

OBDII Code P1112 2007 Ford Fusion - Intake Air Temperature Sensor Intermittent Condition
P1112 2007 Ford Fusion Code - Intake Air Temperature Sensor Intermittent Condition

Common Causes of P1112 2007 Ford Fusion

  1. Faulty IAT sensor
  2. Loose or damaged wiring/connectors to the IAT sensor
  3. Intake air leaks near the IAT sensor
  4. ECM software issues
  5. Environmental factors affecting sensor readings (extreme temperatures, moisture)

Symptoms of P1112 2007 Ford Fusion

  1. Decreased fuel efficiency
  2. Engine misfires or rough idling
  3. Reduced engine power
  4. Check Engine Light illuminated
  5. Engine stalling or hesitation

How to Fix P1112 2007 Ford Fusion

  1. Begin by locating the IAT sensor, typically located near the air intake manifold.
  2. Inspect the wiring and connectors for any signs of damage or looseness. Repair or replace as necessary.
  3. Test the IAT sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it is faulty.
  4. Clear the diagnostic trouble codes from the ECM using a scan tool.
  5. Test drive the vehicle to ensure the issue has been resolved and the Check Engine Light does not reappear.

Cost to Fix P1112 2007 Ford Fusion

The cost of repairing an intermittent condition with the Intake Air Temperature sensor on a 2007 Ford Fusion can vary depending on the specific cause of the issue. In general, the cost of a new IAT sensor ranges from $20 to $50, while labor costs for diagnosis and repair can range from $100 to $300. Overall, the total repair cost for this issue may fall between $120 and $350. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your location and vehicle specifics.

What does this mean?

Tech Notes for P1112 2007 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 P1112 2007 Ford Fusion Code

1. What are the common symptoms of an Intake Air Temperature Sensor Intermittent Condition (OBDII code P1112) on a 2007 Ford Fusion?

- Common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling or hesitation during acceleration.

2. What are the possible causes of the Intake Air Temperature Sensor Intermittent Condition (P1112) in a 2007 Ford Fusion?

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

3. How can I diagnose the Intake Air Temperature Sensor Intermittent Condition (OBDII code P1112) on my 2007 Ford Fusion?

- Diagnosis involves using an OBDII scanner to retrieve the trouble code, inspecting the intake air temperature sensor and its wiring for damage, and checking for loose connections.

4. Can a dirty air filter cause the Intake Air Temperature Sensor Intermittent Condition (P1112) on a 2007 Ford Fusion?

- Yes, a dirty or clogged air filter can affect the intake air temperature readings, potentially triggering the P1112 trouble code.

5. What is the recommended repair for an Intake Air Temperature Sensor Intermittent Condition (OBDII code P1112) on a 2007 Ford Fusion?

- The recommended repair involves replacing the faulty intake air temperature sensor, repairing any damaged wiring or connectors, and clearing the trouble code with an OBDII scanner.

6. Is it safe to continue driving with the Intake Air Temperature Sensor Intermittent Condition (P1112) on a 2007 Ford Fusion?

- It is not recommended to drive with a faulty intake air temperature sensor, as it can lead to poor engine performance and potential drivability issues. It's best to address the issue promptly.

7. Can a DIY enthusiast replace the Intake Air Temperature Sensor on a 2007 Ford Fusion to resolve the P1112 trouble code?

- Yes, replacing the intake air temperature sensor is a relatively straightforward repair that can be done by a DIY enthusiast with basic automotive knowledge and tools.

8. Will resetting the check engine light resolve the Intake Air Temperature Sensor Intermittent Condition (OBDII code P1112) on a 2007 Ford Fusion?

- Resetting the check engine light may temporarily turn off the warning indicator, but it will not address the underlying issue causing the P1112 trouble code. The root cause should be diagnosed and repaired.

9. How much does it typically cost to replace the Intake Air Temperature Sensor on a 2007 Ford Fusion to fix the P1112 trouble code?

- The cost of replacing the intake air temperature sensor can vary depending on the quality of the sensor and labor rates, but it generally ranges from $50 to $150 for parts and labor.

10. Are there any preventive maintenance tips to avoid encountering the Intake Air Temperature Sensor Intermittent Condition (P1112) on a 2007 Ford Fusion in the future?

- Regularly inspecting and cleaning the intake air temperature sensor, ensuring proper air filter maintenance, and addressing any wiring issues promptly can help prevent the recurrence of the P1112 trouble code.

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