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P1120 2008 Ford Fusion Code - Throttle Position Sensor Out of Range

Quick Answer

The P1120 diagnostic trouble code (DTC) for a 2008 Ford Fusion indicates that the throttle position sensor (TPS) is out of range. Common causes include Faulty throttle position sensor, Damaged or corroded wiring/connectors, Dirty throttle body. 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
P1120 2008 Ford Fusion indicates Throttle Position Sensor Out of Range.
Common causes
Common causes include Faulty throttle position sensor, Damaged or corroded wiring/connectors, Dirty throttle body.
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 P1120 2008 Ford Fusion Description

The P1120 diagnostic trouble code (DTC) for a 2008 Ford Fusion indicates that the throttle position sensor (TPS) is out of range. The throttle position sensor is a crucial component of the vehicle's electronic throttle control system, responsible for monitoring the position of the throttle pedal and sending this information to the engine control module (ECM). When the TPS is out of range, it means that the signal being sent to the ECM does not align with the expected values, leading to potential issues with engine performance and drivability.

OBDII Code P1120 2008 Ford Fusion - Throttle Position Sensor Out of Range
P1120 2008 Ford Fusion Code - Throttle Position Sensor Out of Range

Common Causes of P1120 2008 Ford Fusion

  1. Faulty throttle position sensor
  2. Damaged or corroded wiring/connectors
  3. Dirty throttle body
  4. Malfunctioning engine control module (ECM)
  5. Electronic throttle control system calibration issues

Symptoms of P1120 2008 Ford Fusion

  1. Rough idling or stalling
  2. Hesitation or lack of response when accelerating
  3. Poor fuel efficiency
  4. Check Engine Light illuminated
  5. Limp mode activation (limited speed and performance)

How to Fix P1120 2008 Ford Fusion

  1. Begin by diagnosing the issue using a scan tool to confirm the P1120 code and identify the specific cause.
  2. Inspect the throttle position sensor, wiring, and connectors for any signs of damage or corrosion. Replace any faulty components.
  3. Clean the throttle body to ensure proper airflow and operation.
  4. Perform a throttle position sensor relearn procedure to recalibrate the sensor and ECM.
  5. Clear the DTC and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P1120 2008 Ford Fusion

The typical repair costs for addressing a P1120 code on a 2008 Ford Fusion can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also impact the overall repair costs. It's recommended to consult with a trusted mechanic or repair shop to obtain a more accurate estimate based on your specific circumstances.

When is the Code Detected?

Malfunction is detected when voltage from the sensor is sent to Engine Control Module (ECM) is out of range.

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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 P1120 2008 Ford Fusion Code

1. What are the common symptoms of OBDII code P1120 on a 2008 Ford Fusion?

- Common symptoms include poor acceleration, rough idling, stalling, and a noticeable decrease in fuel efficiency.

2. What does the OBDII code P1120 "Throttle Position Sensor Out of Range" mean on a 2008 Ford Fusion?

- This code indicates that the throttle position sensor is sending incorrect signals to the engine control module, potentially causing drivability issues.

3. What are the possible causes of the P1120 code on a 2008 Ford Fusion?

- Possible causes include a faulty throttle position sensor, wiring issues, a dirty throttle body, or problems with the electronic throttle control system.

4. How can I diagnose the P1120 code on my 2008 Ford Fusion?

- Diagnosing the issue involves checking the throttle position sensor's wiring and connections, testing the sensor's voltage output, and inspecting the throttle body for any dirt or debris.

5. Can I continue driving my 2008 Ford Fusion with the P1120 code?

- It is not recommended to continue driving with the P1120 code as it can lead to further damage to the engine or other components. It's best to address the issue promptly.

6. How can I repair the P1120 code on my 2008 Ford Fusion?

- Repair options include replacing the throttle position sensor, cleaning the throttle body, repairing any damaged wiring, or resetting the electronic throttle control system.

7. Will resetting the OBDII code P1120 on a 2008 Ford Fusion make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing the code is not fixed, it is likely to come back.

8. Can I replace the throttle position sensor on my 2008 Ford Fusion myself?

- Replacing the throttle position sensor can be a DIY project for those with mechanical knowledge and the right tools. However, it's recommended to consult a professional if unsure.

9. How much does it typically cost to repair the P1120 code on a 2008 Ford Fusion?

- The cost of repairing the P1120 code can vary depending on the extent of the issue and whether you do the repair yourself or take it to a mechanic. Costs can range from $100 to $300 or more.

10. Is the P1120 code a common issue with 2008 Ford Fusions?

- The P1120 code related to the throttle position sensor can be a common issue in older vehicles like the 2008 Ford Fusion, especially as sensors and components age and wear out.

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