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An economic model is the same as a theory.
Warning Lamp
A visual indicator on the dashboard of a vehicle that alerts the driver to various issues or malfunctions.
Detonation
An uncontrolled, explosive ignition of fuel in an engine's cylinder, causing damage and reducing efficiency.
EGR System
An Exhaust Gas Recirculation System helps reduce nitrogen oxide emissions by recirculating a portion of an engine's exhaust gas back to the engine cylinders.
Air/Fuel Ratio
The ratio of air to fuel in an internal combustion engine, crucial for efficient performance and emissions control.