Dashboard warning light
Engine warning light
NCT relevantThe engine management system has detected a fault that may affect running, emissions, or fuel use.
This warning commonly points to misfire, engine light, spark plug or a related system fault, but the exact cause depends on the vehicle, symptoms, and stored fault context. If your NCT is due soon, it is worth checking because issues around safety, emissions, lighting, or fitment can affect the test. Choose your vehicle below to see relevant parts such as spark plugs, ignition coil, air filter, lambda sensor, then compare offers using the existing FixMyNCT parts flow.
Want to know the exact fault code?
A Bluetooth OBD2 scanner can read engine and emissions fault codes from your phone before you buy parts or book a garage.
Next step
Check parts for this warning light
Choose a vehicle first, then select a related part to show offers on this page.