Engine Control Unit (ECU) — Tata Motors Punch

Category: Fuel System | Severity: high | Cost: ₹15,000–₹60,000

What is Engine Control Unit (ECU)?

Controls engine and fuel system.

How Engine Control Unit (ECU) Works

Processes sensor data and adjusts fuel injection.

Why is Engine Control Unit (ECU) Important?

Central control system.

Common Problems

Software glitch

Symptoms

Check engine light

Causes of Failure

Electrical fault

Impact on Car Performance

Multiple system failure.

DIY Fix Guide — Step by Step

Scan error codes

Maintenance Tips

Avoid voltage fluctuation

Replacement Cost in India

Estimated range: ₹15,000 – ₹60,000

Where to Buy Online

When to Replace Engine Control Unit (ECU)

When ECU fails completely.