What does temp mean on a car?

[VictoriaMarie]

temp refers to the engine coolant temperature. Below are relevant introductions about the engine: 1. When the temperature is too high: When the engine temperature is too high, the temperature of the air entering the engine is also relatively high, so the actual amount of air entering the engine is relatively small, thereby reducing the engine's charging efficiency. The engine's power and torque consequently decrease, manifesting as insufficient engine power. 2. When the temperature is too low: The temperature of the mixture (or air) entering the cylinder is too low, resulting in poor quality of the combustible mixture, making ignition difficult or combustion slow, leading to a decrease in engine power, an increase in fuel consumption, and a significant increase in harmful gas emissions.