P0203: Injector circuit – cylinder 3

What does it mean?

System

Powertrain (engine and transmission)

Subsystem

Fuel and air metering (injectors)

Type of code

Generic code: means the same on every make.

How urgent?

Do not drive further than you need to: carrying on can damage the engine, the catalyst or other parts. If the engine light is flashing, stop safely as soon as you can.

Possible causes

• Fuel pump or fuel filter
• Pressure regulator or rail pressure sensor
• Injector (clogged, leaking or electrical fault)
• Wiring or connector

Tip: don’t just clear the code. Clearing a code doesn’t fix the cause. It often comes back, and the stored data that helps us find the cause is then gone.