Fuel Injectors — Audi A4
Category: Engine | Severity: high | Cost: ₹8,000–₹40,000
What is Fuel Injectors?
Fuel injectors deliver precise amounts of fuel into the combustion chamber in atomized form.
How Fuel Injectors Works
Controlled by ECU, injectors spray fuel at high pressure for optimal combustion.
Why is Fuel Injectors Important?
Ensures efficient fuel combustion and engine performance.
Common Problems
- Clogging
- Leakage
- Injector failure
Symptoms
- Engine misfire
- Poor mileage
- Black smoke
Causes of Failure
- Dirty fuel
- Carbon buildup
- Wear and tear
Impact on Car Performance
Faulty injectors reduce power and increase emissions.
DIY Fix Guide — Step by Step
- Use injector cleaner
- Check fuel quality
- Scan for ECU error codes
- Inspect for leaks
Maintenance Tips
- Use high-quality fuel
- Regular servicing
- Periodic injector cleaning
Replacement Cost in India
Estimated range: ₹8,000 – ₹40,000
Where to Buy Online
When to Replace Fuel Injectors
Replace if clogged beyond cleaning or leaking.