OXYGEN SENSOR / LAMBDA SENSOR

An oxygen sensor (lambda sensor) is an engine management and emissions control component designed to measure the oxygen level in exhaust gases. It sends data to the engine control unit, allowing precise adjustment of the air–fuel mixture and ensuring efficient engine performance.

The sensor is installed in the exhaust system — before the catalytic converter, after the catalyst, or near the diesel particulate filter. It works together with the ECU, fuel injection system, catalytic converter, turbocharger, and EGR system.

A faulty oxygen sensor may cause increased fuel consumption, unstable engine operation, power loss, engine warning lights, catalytic converter malfunction, higher emissions, or limp mode activation.

Our catalog includes oxygen sensors for many vehicle brands. Available options include genuine factory exhaust sensors, reliable aftermarket replacements, and tested used units without wiring or housing damage. Narrowband and wideband sensors, versions for different mounting positions, and variants for various engines are available.

Used parts are inspected for housing integrity, thread condition, cable quality, connector integrity, and signs of overheating.

Selection is available by VIN number, engine code, sensor location, part number, and vehicle year. Replacing a faulty lambda sensor restores correct engine operation, reduces fuel consumption, and normalizes emissions.