Rail Pressure Sensor — Nissan Gravite

Category: Fuel System | Severity: high | Cost: ₹3,000–₹9,000

What is Rail Pressure Sensor?

Monitors fuel pressure in the common rail.

How Rail Pressure Sensor Works

Sends real-time pressure data to ECU.

Why is Rail Pressure Sensor Important?

Ensures correct pressure for injection timing.

Common Problems

Sensor failure
Incorrect readings

Symptoms

Engine stalling
Poor acceleration

Causes of Failure

Electrical issues
Wear

Impact on Car Performance

Incorrect pressure data affects engine performance.

DIY Fix Guide — Step by Step

Scan OBD codes
Check wiring
Replace sensor

Maintenance Tips

Regular diagnostics

Replacement Cost in India

Estimated range: ₹3,000 – ₹9,000

Where to Buy Online

When to Replace Rail Pressure Sensor

Replace when faulty readings occur.