DOX0556 DENSO Lambda Sensor

The Oxygen Sensor from DENSO (MPN: DOX0556) is sourced from Japan and has supplier-listed dimensions of 45 x 70 x 145 mm. It is typically used within the Engine Parts > Engine Electronics > Oxygen Sensor category of automotive replacement parts. Dimensions are provided by the supplier and may include packaging dimensions. Oxygen sensors, also known as O2 sensors, are crucial components in modern engine management systems, typically located in the exhaust manifold or downstream exhaust piping. These sensors measure the oxygen content in the exhaust gases, providing feedback to the engine control unit (ECU) to optimize the air-fuel mixture for efficient combustion and reduced emissions. Utilizing a ceramic sensing element with a catalytic coating, O2 sensors generate a voltage signal proportional to the oxygen levels. Variations include zirconium dioxide and titania sensor types, each with specific operating characteristics and response times. Many systems employ multiple sensors – upstream for fuel trim and downstream for catalytic converter monitoring – to ensure comprehensive engine performance analysis.