📖 What Does P0139 Mean?
Symptoms
- • Failed emissions test
- • check engine light
- • poor catalytic converter monitoring.
Common Causes
- • Aging oxygen sensor
- • contaminated sensor
- • exhaust leaks
- • poor sensor connections.
Possible Solutions
Replace oxygen sensor, repair exhaust leaks, clean sensor connections, check sensor ground.
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❓ Common Questions About P0139
Can I drive with code P0139?
You can drive for a short time, but should address code P0139 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix P0139?
The estimated repair cost for code P0139 is between $50 and $250. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
Yes, this is often a DIY-friendly repair. With basic tools and the correct part, many owners can resolve this themselves in under an hour.
Required Parts
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View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with P0139
Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
Oxygen Sensor Circuit High Voltage Bank 1 Sensor 2
Oxygen Sensor Circuit No Activity Bank 1 Sensor 2
Oxygen Sensor Heater Circuit Malfunction Bank 1 Sensor 2
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system