Engine Management / Check Engine Warning

Can I keep driving?Usually yes if the light is steady, the vehicle is running normally, and no red warnings are present. Drive carefully and arrange inspection as soon as possible.

Reduce unnecessary load on the engine and have the fault checked promptly.

What does it mean?

The engine-management system has detected a fault involving the engine, emissions system or associated sensors or components.

What should I do?

Check whether the warning light is steady or flashing.
If it is steady and the vehicle is driving normally, continue cautiously and arrange professional diagnosis as soon as possible.
Avoid hard acceleration, high engine speeds and unnecessary heavy load.
Check for any additional dashboard warnings or messages.
If the engine is running roughly, losing significant power, juddering or behaving abnormally, stop somewhere safe and seek assistance.
If the light flashes, reduce speed immediately, avoid harsh acceleration and deceleration, and arrange urgent inspection.
Follow the vehicle manufacturer's instructions in the owner's manual.

Possible causes

Engine sensor fault
Ignition or misfire fault
Fuel-system fault
Emissions-control fault
Air-intake or airflow fault
Exhaust or emissions sensor fault
Engine-management wiring or electrical fault
Other engine-management system fault

DashAid guidance is researched using vehicle-manufacturer documentation and established UK motoring and road-safety sources. Always consult your vehicle's owner's manual for model-specific instructions.