Oxygen Sensor for Toyota Fortuner Legender — Price, Symptoms & Replacement Guide
Category: Exhaust | Failure Severity: Medium | Replacement Cost in India: ₹5,000–₹15,000
What is the Oxygen Sensor?
Measures oxygen levels in exhaust gases.
How the Oxygen Sensor Works
Sends data to ECU to adjust air-fuel ratio.
Why the Oxygen Sensor is Important
Optimizes fuel efficiency and emissions.
Common Problems with the Oxygen Sensor
- Sensor failure
- Carbon fouling
Warning Symptoms of a Failing Oxygen Sensor
- Check engine light
- Poor mileage
- Rough idling
Common Causes of Oxygen Sensor Failure
- Contamination
- Aging
Impact on Car Performance
Reduced fuel efficiency and higher emissions.
DIY Fix Guide — Step by Step
- Sensor replacement
Maintenance Tips
- Timely replacement
- Use quality fuel
Oxygen Sensor Replacement Cost in India
Expect to pay between ₹5,000 and ₹15,000 for genuine parts plus labour at an authorised Toyota workshop. Local garages and aftermarket parts can be 20–40% cheaper but may compromise warranty.
Where to Buy Oxygen Sensor Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Oxygen Sensor listings.
When to Replace the Oxygen Sensor
Every 80,000–100,000 km or when faulty.