02 Oxygen Sensor Suit Ford AU-BA-BF Sedan/Ute/Van/FPV 6 & 8 Cyl

Four Wire Sensor - heated sensor with integrated earth reference/supply circuit, these sensors may be either grounded through the body or earth isolated depending upon engine management system design and customer requirement. Earth isolated sensors are provided with an earthing circuit for the measuring cell by the engine management control unit. The engine management control unit purely references the earth of a sensor that has its body grounded.