The outside temperature sensor in a Chevy Equinox may be found at the the front of the engine bay at the radiator support bracket. That is what measures the ambient air temperature anywhere you're at. This facts is beneficial that allows you to recognise the temperature out of doors</br> however it is also suitable information for your european to have. Less warm air is more dense than warmer air so if your vehicle knows the temperature it may assist make better decisions on how tons air you may want to get the best air to fuELRatio for your engine to finish the combustion within the cylinder. In case your ambient air sensor is failing you will usually note faulty temperatures on the display in the automobile.