DODGE O2 SENSOR WIRING
There are 4 wires on the oxygen sensor of my Dodge Ram
O2 Sensor Testing - Dodge Ram
Oxygen Sensors and your Ram. Testing the O2 sensor in the Dodge Ram. Sensors with two wires or four wires are grounded by the wiring harness. Two types of oxygen sensor elements are commonly used. The sensor used in the Dodge Ram is internally heated to speed warm-up.