The phrase "engine fault" means that there is a problem or issue with the engine of a vehicle or machine. It indicates that something is not working correctly, and repair or maintenance is needed. Full definition
The Engine and Maintenance sections gives you a detailed look into engine faults, engine measurements and diagnostics, fuel usage, as well as setting up maintenance reminders and recording maintenance done. (telematics.com)
Just under a third of all Alfa failures were down to the axles and suspension, with engine faults the next biggest issue — causing more than 15 % of problems.» (ausmotive.com)
Certain engine faults, such as a leaking head gasket, poor engine running condition or exhaust blockages can also cause overheating. (yourmechanic.com)