Engine Control Unit (ECU) — Tata Motors Punch
Category: Engine | Severity: high | Cost: ₹20,000–₹60,000
What is Engine Control Unit (ECU)?
Main computer controlling engine functions.
How Engine Control Unit (ECU) Works
Processes sensor data to control fuel injection, ignition, and timing.
Why is Engine Control Unit (ECU) Important?
Central brain of engine operations.
Common Problems
- Software glitches
- Failure
Symptoms
- Engine not starting
- Check engine light
Causes of Failure
- Electrical issues
- Water damage
Impact on Car Performance
Complete engine malfunction.
DIY Fix Guide — Step by Step
- Scan using OBD tool
Maintenance Tips
- Avoid water exposure
Replacement Cost in India
Estimated range: ₹20,000 – ₹60,000
Where to Buy Online
When to Replace Engine Control Unit (ECU)
When ECU fails or cannot be reprogrammed.