DENSO Universal Heated Oxygen Sensor 4-Wire

The DENSO Universal Heated Oxygen Sensor 4-Wire is a universal-fit O2 sensor (also called an oxygen sensor or lambda sensor) that monitors the oxygen content in engine exhaust gas. It sends this data to the engine control module (ECM), which uses it to keep the air-fuel ratio correct for efficient combustion, lower emissions and good drivability.

Key Features:

• Four-wire design with an integrated heating element, so the sensor reaches operating temperature quickly and the engine can enter closed-loop fuel control sooner after a cold start
• Universal wiring lets the installer splice the sensor to the vehicle's existing connector. This suits applications where a direct-fit sensor is not available or a custom installation is needed
• Made by DENSO, a leading original equipment supplier of automotive sensors and engine management components
• Helps restore fuel economy and lower emissions when an aging or contaminated sensor is replaced

A worn or failing oxygen sensor can cause poor fuel economy, rough idle, hesitation and a check engine light. Replacing it with a DENSO universal heated sensor helps restore proper air-fuel control. Wiring must be matched correctly to the vehicle's harness during installation.