P0138 2011 Ford Fusion Code - O2 Sensor Circuit High Voltage Bank 1 Sensor 2
Quick Answer
The P0138 code for a 2011 Ford Fusion indicates an issue with the O2 sensor circuit having high voltage in Bank 1 Sensor 2. Common causes include Faulty O2 sensor, Wiring or connector issues in the O2 sensor circuit, Exhaust leaks near the O2 sensor. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0138 2011 Ford Fusion indicates O2 Sensor Circuit High Voltage Bank 1 Sensor 2.
- Common causes
- Common causes include Faulty O2 sensor, Wiring or connector issues in the O2 sensor circuit, Exhaust leaks near the O2 sensor.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0138 2011 Ford Fusion Description
The P0138 code for a 2011 Ford Fusion indicates an issue with the O2 sensor circuit having high voltage in Bank 1 Sensor 2. The O2 sensor, also known as the oxygen sensor, plays a crucial role in monitoring the oxygen levels in the exhaust gases. Bank 1 Sensor 2 refers to the sensor located downstream of the catalytic converter on the side of the engine where cylinder 1 is located.
Common Causes of P0138 2011 Ford Fusion
- Faulty O2 sensor
- Wiring or connector issues in the O2 sensor circuit
- Exhaust leaks near the O2 sensor
- Engine running rich due to a fuel system issue
- Faulty ECM
Symptoms of P0138 2011 Ford Fusion
- Decreased fuel efficiency
- Engine misfires or rough idling
- Check Engine Light illuminated
- Poor acceleration or hesitation
- Failed emissions test
How to Fix P0138 2011 Ford Fusion
- Use an OBD-II scanner to confirm the P0138 code and identify the specific O2 sensor causing the issue.
- Inspect the wiring and connectors in the O2 sensor circuit for any damage or corrosion. Repair or replace as needed.
- Check for exhaust leaks near the O2 sensor and repair them if found.
- Replace the Bank 1 Sensor 2 O2 sensor with a new, high-quality sensor compatible with the Ford Fusion.
- Clear the code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0138 2011 Ford Fusion
The typical repair costs for addressing a P0138 code on a 2011 Ford Fusion can range from $150 to $400, including parts and labor. The cost of the O2 sensor itself can vary depending on the brand and quality, ranging from $50 to $200. Labor costs can range from $100 to $200, depending on the shop's hourly rates and the time required for the repair. It's important to note that prices can vary based on location, vehicle make and model, and the specific diagnosis and repair process needed. It's recommended to obtain quotes from local auto repair shops for a more accurate estimate.
Tech Notes for P0138 2011 Ford Fusion
When is the Code Detected?
Need more information about the P0138 2011 Ford Fusion code?
Need more information on how to fix the P0138 2011 Ford Fusion code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0138 2011 Ford Fusion code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0138 2011 Ford Fusion Code
1. What does OBDII code P0138 on a 2011 Ford Fusion mean?
- OBDII code P0138 indicates a high voltage condition in the O2 sensor circuit for Bank 1 Sensor 2 in a 2011 Ford Fusion.
2. What are the common symptoms of O2 sensor circuit high voltage Bank 1 Sensor 2 issue?
- Common symptoms include poor fuel economy, rough idling, engine hesitation, and an illuminated check engine light.
3. What can cause the O2 sensor circuit high voltage issue in a 2011 Ford Fusion?
- Possible causes include a faulty O2 sensor, damaged wiring or connectors, exhaust leaks, engine misfires, or a malfunctioning PCM.
4. How can I diagnose the O2 sensor circuit high voltage issue in my 2011 Ford Fusion?
- Diagnose the problem by checking the O2 sensor's voltage readings, inspecting the wiring and connectors for damage, and performing a visual inspection of the exhaust system.
5. Can I drive my 2011 Ford Fusion with the O2 sensor circuit high voltage issue?
- It is not recommended to drive the vehicle with this issue as it can lead to further damage and reduced fuel efficiency.
6. How do I repair the O2 sensor circuit high voltage Bank 1 Sensor 2 problem in my 2011 Ford Fusion?
- Repair options include replacing the faulty O2 sensor, repairing damaged wiring or connectors, fixing any exhaust leaks, and resetting the fault code.
7. What tools might I need to diagnose and repair the O2 sensor circuit high voltage issue?
- Common tools needed include a multimeter for voltage testing, a scan tool for reading fault codes, wrenches for sensor removal, and a soldering iron for wiring repairs.
8. Is it possible to reset the OBDII code P0138 in a 2011 Ford Fusion after fixing the issue?
- Yes, the code can be cleared using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.
9. How often should I check the O2 sensor circuit in my 2011 Ford Fusion for potential issues?
- It is recommended to include O2 sensor checks as part of regular vehicle maintenance or whenever you experience symptoms of poor engine performance.
10. Can a DIY enthusiast with basic knowledge fix the O2 sensor circuit high voltage issue in a 2011 Ford Fusion?
- Depending on the individual's skill level, a DIY enthusiast with basic knowledge of automotive repair may be able to diagnose and fix this issue, especially with the help of online resources and repair guides.
Discuss the causes and fixes for P0138 2011 Ford Fusion OBDII Code
Code P0138 2011 Ford Fusion comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.