What component is NOT associated with the emissions system?

The cabin temperature sensor is not associated with the emissions system because its primary function is related to the climate control system of the vehicle. This component measures the temperature within the vehicle's cabin to help regulate heating and cooling through the HVAC system. It does not play a role in monitoring or controlling emissions, which is the focus of other components listed in the question.

In contrast, components like the oxygen sensor, catalytic converter, and evaporative canister are directly involved in managing and reducing vehicle emissions. The oxygen sensor measures the oxygen levels in the exhaust, helping to optimize the air-fuel mixture for efficient combustion. The catalytic converter converts harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides into less toxic emissions. The evaporative canister captures fuel vapors from the fuel tank to prevent them from escaping into the atmosphere, further contributing to emissions control.