P0138 2006 Ford Fusion Code - O2 Sensor Circuit High Voltage Bank 1 Sensor 2
Quick Answer
The P0138 code for a 2006 Ford Fusion indicates a problem with the O2 sensor circuit high voltage for Bank 1 Sensor 2. Common causes include Faulty O2 sensor, Wiring issues (shorts, frayed wires), Exhaust leaks. 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 2006 Ford Fusion indicates O2 Sensor Circuit High Voltage Bank 1 Sensor 2.
- Common causes
- Common causes include Faulty O2 sensor, Wiring issues (shorts, frayed wires), Exhaust leaks.
- 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 2006 Ford Fusion Description
The P0138 code for a 2006 Ford Fusion indicates a problem with the O2 sensor circuit high voltage for 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 to ensure the proper air-fuel ratio for combustion in the engine. Bank 1 refers to the side of the engine where the number 1 cylinder is located, while Sensor 2 indicates the downstream sensor located after the catalytic converter.
Common Causes of P0138 2006 Ford Fusion
- Faulty O2 sensor
- Wiring issues (shorts, frayed wires)
- Exhaust leaks
- Engine running too rich
- Faulty catalytic converter
Symptoms of P0138 2006 Ford Fusion
- Decreased fuel efficiency
- Engine misfires
- Rough idling
- Check Engine Light illuminated
- Increased emissions
How to Fix P0138 2006 Ford Fusion
- Begin by diagnosing the issue using a scan tool to confirm the P0138 code and identify the specific O2 sensor causing the problem.
- Inspect the wiring harness and connections for any damage or corrosion, repairing or replacing as needed.
- Test the O2 sensor's voltage output and resistance to determine if it is functioning properly. Replace the sensor if it is faulty.
- Check for exhaust leaks and repair any leaks found.
- Clear the diagnostic trouble codes, reset the vehicle's computer, and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0138 2006 Ford Fusion
The typical repair costs for addressing a P0138 code on a 2006 Ford Fusion can range from $200 to $500, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It's recommended to check local rates for a more accurate estimate.
Tech Notes for P0138 2006 Ford Fusion
When is the Code Detected?
Need more information about the P0138 2006 Ford Fusion code?
Need more information on how to fix the P0138 2006 Ford Fusion code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0138 2006 Ford Fusion code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0138 2006 Ford Fusion Code
1. What does the OBDII code P0138 mean on a 2006 Ford Fusion?
P0138 indicates that the oxygen sensor on Bank 1, Sensor 2, is reporting a voltage higher than expected, which may suggest a rich fuel mixture or sensor malfunction.
2. What are the common symptoms of code P0138 in a 2006 Ford Fusion?
Symptoms include poor fuel economy, the check engine light being illuminated, failed emissions tests, and potentially rough idling or hesitation.
3. What causes the P0138 code on a 2006 Ford Fusion?
Common causes include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, a malfunctioning catalytic converter, or engine running rich.
4. Which oxygen sensor is Bank 1 Sensor 2 on a 2006 Ford Fusion?
Bank 1 Sensor 2 is the oxygen sensor located downstream of the catalytic converter on the side of the engine with cylinder 1.
5. Can I drive my 2006 Ford Fusion with a P0138 code?
While the car may still be drivable, ignoring the P0138 code can lead to increased emissions, reduced fuel efficiency, and potential damage to the catalytic converter.
6. How can I fix the P0138 code on my 2006 Ford Fusion?
Repairs may include replacing the oxygen sensor, repairing damaged wiring or connectors, fixing exhaust leaks, or addressing issues with the fuel system.
7. How do I test the oxygen sensor for the P0138 code?
Use a multimeter to check the voltage output of the sensor. A consistent high voltage (above 1.2 volts) may indicate a faulty sensor or wiring issue.
8. Could a bad catalytic converter cause the P0138 code?
Yes, a failing catalytic converter can cause incorrect readings from the downstream oxygen sensor, triggering the P0138 code.
9. How much does it cost to fix the P0138 code on a 2006 Ford Fusion?
Repair costs can range from $150 to $400, depending on whether the issue is a simple oxygen sensor replacement or more extensive repairs.
10. Can a vacuum leak cause the P0138 code on a 2006 Ford Fusion?
No, a vacuum leak typically causes a lean condition, not the high voltage or rich condition associated with P0138.
Discuss the causes and fixes for P0138 2006 Ford Fusion OBDII Code
Code P0138 2006 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.