Engine Control Unit (ECU) — Renault Duster

Category: Engine | Severity: high | Cost: ₹20,000–₹80,000

What is Engine Control Unit (ECU)?

ECU is the brain of the engine managing fuel injection, ignition timing, and sensor data.

How Engine Control Unit (ECU) Works

It processes inputs from sensors and adjusts engine parameters in real-time.

Why is Engine Control Unit (ECU) Important?

Ensures optimal performance, efficiency, and emission control.

Common Problems

Software glitches
Failure
Wiring issues

Symptoms

Check engine light
Poor performance
Starting issues

Causes of Failure

Electrical faults
Moisture damage

Impact on Car Performance

Failure leads to complete engine malfunction.

DIY Fix Guide — Step by Step

Scan error codes using OBD tool
Check battery connections

Maintenance Tips

Avoid water exposure
Regular diagnostics

Replacement Cost in India

Estimated range: ₹20,000 – ₹80,000

Where to Buy Online

When to Replace Engine Control Unit (ECU)

When ECU fails or is unresponsive.