P0139 2018 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Slow Response
Quick Answer
The P0139 diagnostic trouble code (DTC) on a 2018 Honda CR-V indicates that there is a slow response from the Secondary Heated Oxygen Sensor 2. Common causes include Malfunctioning Secondary Heated Oxygen Sensor 2, Wiring or connector issues, Exhaust leaks near the 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
- P0139 2018 Honda CR-V indicates Secondary Heated Oxygen Sensor 2 Slow Response.
- Common causes
- Common causes include Malfunctioning Secondary Heated Oxygen Sensor 2, Wiring or connector issues, Exhaust leaks near the 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.
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Code P0139 2018 Honda CR-V Description
The P0139 diagnostic trouble code (DTC) on a 2018 Honda CR-V indicates that there is a slow response from the Secondary Heated Oxygen Sensor 2. This sensor is responsible for monitoring the oxygen levels in the exhaust gases after they have passed through the catalytic converter. The information provided by this sensor is crucial for the engine control unit (ECU) to adjust the air-fuel mixture for optimal combustion efficiency and emission control.
Common Causes of P0139 2018 Honda CR-V
- Malfunctioning Secondary Heated Oxygen Sensor 2
- Wiring or connector issues
- Exhaust leaks near the sensor
- Faulty catalytic converter
- Engine misfires or running rich/lean conditions
Symptoms of P0139 2018 Honda CR-V
- Decreased fuel efficiency
- Rough idling or stalling
- Check Engine Light illuminated
- Increased emissions
- Reduced engine performance
How to Fix P0139 2018 Honda CR-V
- Begin by identifying the location of the Secondary Heated Oxygen Sensor 2 in the exhaust system.
- Inspect the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
- Check for exhaust leaks near the sensor and repair them to ensure accurate readings.
- Replace the Secondary Heated Oxygen Sensor 2 if it is found to be malfunctioning.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0139 2018 Honda CR-V
The cost of repairing a P0139 code on a 2018 Honda CR-V can vary depending on the specific cause of the issue. In general, the price range for replacing a Secondary Heated Oxygen Sensor 2 can be between $150 and $300, including parts and labor. Additional costs may apply if there are other underlying issues that need to be addressed. It is recommended to consult with a qualified mechanic or auto repair shop for an accurate estimate based on the individual vehicle's needs and location. Labor rates at auto repair shops typically range from $80 to $150 per hour, with rates potentially higher at dealerships or in metropolitan areas.
Tech Notes for P0139 2018 Honda CR-V
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Frequently Asked Questions about P0139 2018 Honda CR-V Code
1. What does OBDII code P0139 mean on a 2018 Honda CR-V?
Code P0139 indicates that the secondary heated oxygen sensor (Bank 1, Sensor 2) has a slow response time in adjusting to changes in the air-fuel mixture.
2. What are the symptoms of P0139 on a 2018 Honda CR-V?
Common symptoms include an illuminated check engine light, reduced fuel efficiency, possible rough idling, and increased emissions.
3. What causes P0139 on a 2018 Honda CR-V?
Typical causes include a failing secondary oxygen sensor, exhaust leaks, wiring or connector issues, or soot buildup on the sensor.
4. Can I still drive my 2018 Honda CR-V with a P0139 code?
You can drive the vehicle, but it may result in reduced fuel economy and higher emissions. Prolonged driving without addressing the issue could lead to further damage.
5. How do I diagnose a P0139 code on my 2018 Honda CR-V?
Use an OBDII scanner to confirm the code, inspect the oxygen sensor and wiring for damage, and check for exhaust leaks or soot buildup.
6. How do I fix the P0139 code on a 2018 Honda CR-V?
Repairs may include replacing the oxygen sensor, fixing wiring or connector issues, cleaning the sensor, or repairing any exhaust leaks.
7. How much does it cost to fix a P0139 code on a 2018 Honda CR-V?
Replacing the secondary oxygen sensor typically costs between $150 and $300, including parts and labor. Additional repairs for wiring or exhaust issues may vary.
8. Can a dirty air filter cause P0139 on a 2018 Honda CR-V?
While unlikely, a dirty air filter can affect the air-fuel mixture, potentially contributing to oxygen sensor issues.
9. Does a P0139 code affect my 2018 Honda CR-V's emissions test?
Yes, a P0139 code can cause your vehicle to fail an emissions test due to improper oxygen sensor function.
10. Will clearing the P0139 code fix the issue on my 2018 Honda CR-V?
Clearing the code may turn off the check engine light temporarily, but the issue will likely return unless the underlying problem is resolved.
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