Wastegate — Nissan Gravite
Category: Engine | Severity: high | Cost: ₹8,000–₹25,000
What is Wastegate?
The wastegate regulates turbocharger boost pressure by controlling exhaust flow.
How Wastegate Works
Opens to divert exhaust gases away from the turbine to limit boost.
Why is Wastegate Important?
Prevents excessive boost pressure and engine damage.
Common Problems
- Stuck valve
- Boost issues
Symptoms
- Overboost
- Underboost
- Engine warning light
Causes of Failure
- Carbon buildup
- Wear
Impact on Car Performance
Incorrect boost affects performance and safety.
DIY Fix Guide — Step by Step
- Check boost pressure
- Inspect actuator
- Clean mechanism
Maintenance Tips
- Regular inspection
Replacement Cost in India
Estimated range: ₹8,000 – ₹25,000
Where to Buy Online
When to Replace Wastegate
Replace if stuck or malfunctioning.