CC
CarCodeFix
P0133Medium Priority

O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)

Category: Powertrain• Fuel and Air Metering

4 articles · 3 makes affected

Safety Warning

Steering SystemCritical

Do not drive. Have vehicle towed to a mechanic.

Based on owner reports. Always prioritize safety and consult a qualified mechanic.

What is P0133?

Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1). The upstream O2 sensor is responding too slowly to air/fuel ratio changes, typically due to sensor aging or contamination.

Symptoms You May Notice

  • ●Check engine light
  • ●Poor fuel economy
  • ●Sluggish performance
  • ●Failed emissions test

How to Fix It

  • ●Replace upstream O2 sensor ($100-$300, intermediate)
  • ●Clean O2 sensor (temporary) ($30-$80, beginner)
  • ●Check exhaust system ($100-$400, intermediate)

Root Causesfor P0133

Based on 7 owner reports

Confirmed Causes

  • 1
    remote start sys(14% of cases)

What Didn't Help

Repairs that owners tried but didn't fix the issue

been operated for a prolonged period of timeneed repairoccur again until the ignition is cycled

Things to Check

Suggested areas to investigate based on similar cases

felt in the brake pedal and an increased level of noise may be noticedlouder after the vehicle has not been operated for a prolonged period of timenoise explanation ^clicking

Owner Statistics

Based on 273,078 real owner discussions • 5643 confirmed solutions

Dataset (273,078 records)
$763
Average Repair Cost
2%
Success Rate
20%
DIY Repairs
273,078
Data Sources

About This Data

Statistics are aggregated from real owner discussions on Reddit, automotive forums, and YouTube comments. All data is anonymized and represents actual repair experiences reported by vehicle owners.

Frequently Appears With

These codes often appear together in owner reports. Check these if you see P0133.

Based on analysis of 1 owner reports where multiple codes appeared together.

Issues by Vehicle