What does temp mean on a car?

[StGabrielle]

temp refers to the engine coolant temperature. Here is some relevant information about the engine: When the coolant temperature is too high: When the engine temperature is too high, the temperature of the air entering the engine is also relatively high, resulting in a reduced actual air intake into the engine. This decreases the engine's volumetric efficiency, leading to a decline in the engine's power and torque, manifesting as insufficient engine power. When the coolant temperature is too low: The temperature of the air-fuel mixture (or air) entering the cylinders is too low, resulting in poor quality of the combustible mixture. This makes ignition difficult or combustion sluggish, leading to a decrease in engine power, an increase in fuel consumption, and a significant rise in harmful emissions.