Engine Fuel Temperature SensorENGINE FUEL TEMPERATURE SENSORIdeal solution – engineered to accurately measure the temperature of the vehicle fuel, and relay that information to the engine control unit to help optimize the air-to-fuel mix ratioDirect replacement – this fuel temperature sensor is designed to match the performance of an original equipment sensor on specified vehiclesTrustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experienceRestores performance – replacing a failed fuel temperature sensor can help eliminate rough idle, poor acceleration and fuel economy, hard starting and emissions issues, and clear a check engine lightA failed fuel temperature sensor can cause rough idle, poor acceleration and fuel economy, hard starting and emissions issues, and will often result in a check engine light. This fuel temperature sensor is designed to match the performance of an original equipment sensor on specified vehicles. It is engineered to reliably and accurately measure the temperature of the vehicle fuel, and relay that information to the engine control unit to help optimize the air-to-fuel mix ratio.