P0141Medium urgency
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
Emission · Oxygen Sensors
⚠️ Safe to drive — affects emissions readiness.
What this means
The downstream oxygen sensor heater on Bank 1 has failed. This sensor monitors catalytic converter efficiency.
Likely causes
- Failed downstream O2 sensorMost common
- Wiring damage near exhaustCommon
Estimated repair cost
Downstream O2 sensor replace$120 – $300
Wiring harness repair$75 – $200
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Frequently asked questions
What does P0141 mean?
The downstream oxygen sensor heater on Bank 1 has failed. This sensor monitors catalytic converter efficiency.
Is P0141 serious?
Safe to drive — affects emissions readiness.
How much does it cost to fix P0141?
Repair costs for P0141 range from $120 – $300 depending on the root cause and your vehicle.
Can I drive with P0141?
You can drive short distances but should have it repaired within 1-2 weeks to prevent further damage.