Crankshaft Position Sensor — Audi Q3 Sportback
Category: Engine | Severity: high | Cost: ₹4,000–₹15,000
What is Crankshaft Position Sensor?
Monitors crankshaft rotation and position.
How Crankshaft Position Sensor Works
Sends rotational speed and position data to ECU.
Why is Crankshaft Position Sensor Important?
Critical for ignition timing and fuel injection.
Common Problems
- Sensor failure
- Signal loss
Symptoms
- Engine stalling
- No start
- Misfire
Causes of Failure
- Heat damage
- Electrical faults
Impact on Car Performance
Engine may not start or run properly.
DIY Fix Guide — Step by Step
- Scan ECU codes
- Inspect wiring
- Check sensor connection
- Clean sensor
- Replace if faulty
Maintenance Tips
- Avoid overheating
Replacement Cost in India
Estimated range: ₹4,000 – ₹15,000
Where to Buy Online
When to Replace Crankshaft Position Sensor
Replace if engine fails to start or stalls frequently.