DTC P0133 — O2 Sensor Circuit Slow Response (Bank 1, Sensor 1)
P0133 indicates: O2 Sensor Circuit Slow Response (Bank 1, Sensor 1).
Diagnostic summary
P0133
What it means
O2 Sensor Circuit Slow Response (Bank 1, Sensor 1)
Can you drive?
⚠️ Drive with caution
Urgency
Medium 5/10
Typical price
$80 – $350
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Updated Aug 28, 2026 Seen on Powertrain
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ℹ️ What does it mean?
O2 Sensor Circuit Slow Response (Bank 1, Sensor 1)
🔍 Symptoms
- • Check Engine Light on
- • Reduced engine performance
- • Increased fuel consumption
- • Unusual engine behavior
⚠️ Possible Causes
- ⚠ Aging O2 sensor
- ⚠ Exhaust leak
- ⚠ Fuel delivery issue
- ⚠ Vacuum leak
🚗 Can I drive with this code?
Drive with caution
Drive with caution. Schedule a repair soon.
🔧 How to Diagnose
- 1 Read DTCs with OBD-II scanner
- 2 Check freeze frame data
- 3 Inspect related components
- 4 Clear codes and test drive
🛠️ How to Fix
- 1 Replace O2 sensor
- 2 Fix exhaust leaks
- 3 Check fuel system
- 4 Fix vacuum leaks
💰 Estimated Repair Cost
Repair cost by car / region
Early rough estimate. Accuracy improves as more real repair stories are added.
DIY / parts$28 – $228
Mechanic / labor$36 – $263
Repair range$80 – $350
❓ FAQ
What does P0133 mean?
O2 Sensor Circuit Slow Response (Bank 1, Sensor 1)
How serious is P0133?
Severity: medium. Drive with caution. Schedule a repair soon.
How much does it cost to fix P0133?
Estimated repair cost: $80–$350 depending on vehicle and region.
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