Feature: - Fitment: for Gasoline Car 12V - Air Fuel Ratio: 20:1-10:1 - Narrowband Oxygen Sensor: 0258006028 Attention: the sensor is Narrrowband Oxygen Sensor and it should be working on 0-1V , please check your car whether fit for it or not before making order !!!!!! Oxygen Sensor Specification: OEM:0258006028 Working Voltage: DC12V Signal Line Voltage: 0-1V Spiral: M18*1.5 Use Wrench: 22mm Output Voltage: Maximum value 900mv/ minimum value 50mv. Response time: (600mV-300mV) 100ms. Response time: (300mV -600mV) 100ms. Starting time: 10s Heating resistance: 8.5~9.5 Internal resistance: 200~300 fit For Geely Emgrand CITROEN FIAT PEUGEOT Oxygen Sensor Connection: - The white line is at heater ab - Black line signal line C, gray line signal ground D - The green wire of the instrument is connected with the black wire of the sensor. The gray line is connected to the negative pole of the battery. - One white wire connect with the car shell or battery negative pole.Another white wire connect to the ACC line of ignition switch - The white line is the heater and does not distinguish between positive and negative electrodes - About the air fuel gauge, please see the installation instructions. Attention: If you need the sensor and the gauge , please choose the item of sensor and gauge together. Package: 1PCS Gauge+Cable+Manual or 1PCS Sensor+Manual or 1PCS Gauge+Sensor+Cable+Manual or 1PCS Gauge Holder