Do I need any adapter or wiring harness to install this?

No. The connector matches the factory harness directly — plug it in and bolt down the sensor at the original mounting location.

Will this clear a check-engine light from a bad sensor?

Yes, as long as the code is specifically tied to this sensor position. Once the new sensor is installed and the engine cycles through, the system will recognize the change. Have a scanner available to verify the code clears after installation.

What tools do I need to install this?

Basic hand tools — typically a socket wrench set and a screwdriver to access the sensor mounting bolt. Consult your vehicle's service manual for the exact torque specification and any other fasteners needed at that location.