Mass Air Flow Sensor — MG Motor Majestor
Category: Electrical | Severity: medium | Cost: ₹3,000–₹12,000
What is Mass Air Flow Sensor?
Measures the amount of air entering the engine for optimal fuel injection.
How Mass Air Flow Sensor Works
Uses a heated wire to detect airflow and sends data to ECU.
Why is Mass Air Flow Sensor Important?
Ensures proper air-fuel ratio for performance and efficiency.
Common Problems
- Dirty sensor
- Incorrect readings
Symptoms
- Poor mileage
- Rough idle
- Black smoke
Causes of Failure
- Dust
- Oil contamination
Impact on Car Performance
Can reduce fuel efficiency by up to 20%.
DIY Fix Guide — Step by Step
- Clean sensor with MAF cleaner
- Check air filter
- Replace if needed
Maintenance Tips
- Replace air filter regularly
Replacement Cost in India
Estimated range: ₹3,000 – ₹12,000
Where to Buy Online
When to Replace Mass Air Flow Sensor
When cleaning doesn't fix performance issues.