P0133
O2 Sensor Circuit Slow Response Bank 1 Sensor 1
P0133 is an OBD-II diagnostic trouble code meaning: O2 Sensor Circuit Slow Response Bank 1 Sensor 1. Common causes: worn oxygen sensor, sensor contamination (oil, carbon deposits). Estimated repair cost: $56–167.
Symptoms
- Unstable engine idling
- Increased fuel consumption
- Reduced engine power
- Check Engine Light Illuminates
Causes
- Worn oxygen sensor
- Sensor contamination (oil, carbon deposits)
- Wiring harness damage
- Poor contact in the sensor connector
- Sensor power circuit malfunction
How to Fix
- Check the condition of the oxygen sensor
- Inspect the wiring harness and connectors for damage
- Clean the sensor (if possible)
- Replace sensor if necessary
- Check the sensor power supply circuit
Related codes
Error P0133 by Vehicle Brand
FAQ
What does the P0133 code mean?
P0133 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Circuit Slow Response Bank 1 Sensor 1
What causes a P0133 error code?
The most common causes of P0133 include: Worn oxygen sensor; Sensor contamination (oil, carbon deposits); Wiring harness damage; Poor contact in the sensor connector.
How do I fix a P0133 diagnostic trouble code?
To fix P0133: Check the condition of the oxygen sensor. Inspect the wiring harness and connectors for damage. Clean the sensor (if possible). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0133?
Limited driving only, diagnose soon
How much does it cost to fix P0133?
The estimated repair cost for P0133 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat