Oxygen Sensor: Diagrams

E38 (Air Fuel Ratio Sensor (Bank 2 Sensor 1)):

E42 (Air Fuel Ratio Sensor (Bank 1 Sensor 1)):

J40 (Heated Oxygen Sensor (Bank 2 Sensor 2)):

J68 (Heated Oxygen Sensor (Bank 1 Sensor 2)):

Q4 (Heated Oxygen Sensor (Bank 2 Sensor 2)):