Air Fuel Ratio Sensor for Maruti Suzuki Swift — Price, Symptoms & Replacement Guide
Category: Fuel System | Failure Severity: Medium | Replacement Cost in India: ₹4,000–₹12,000
What is the Air Fuel Ratio Sensor?
Precisely measures air-fuel mixture ratio for efficient combustion.
How the Air Fuel Ratio Sensor Works
Provides real-time AFR data to ECU for precise injection control.
Why the Air Fuel Ratio Sensor is Important
Improves fuel efficiency and reduces emissions.
Common Problems with the Air Fuel Ratio Sensor
- Sensor drift
- Electrical failure
Warning Symptoms of a Failing Air Fuel Ratio Sensor
- Engine hesitation
- Poor fuel economy
Common Causes of Air Fuel Ratio Sensor Failure
- Wear and tear
- Contamination
Impact on Car Performance
Incorrect fuel mixture leading to performance issues.
DIY Fix Guide — Step by Step
- Diagnostic scan
- Replace sensor
Maintenance Tips
- Use clean fuel
- Timely servicing
Air Fuel Ratio Sensor Replacement Cost in India
Expect to pay between ₹4,000 and ₹12,000 for genuine parts plus labour at an authorised Maruti Suzuki workshop. Local garages and aftermarket parts can be 20–40% cheaper but may compromise warranty.
Where to Buy Air Fuel Ratio Sensor Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Air Fuel Ratio Sensor listings.
When to Replace the Air Fuel Ratio Sensor
When AFR readings become inaccurate.