Engine Compartment/Exhaust System

Fig. 3 Heated Oxygen Sensor 1/1:

Fig. 4 Heated Oxygen Sensor 2/1:

The upstream oxygen sensors thread into the outlet flanges of the exhaust manifolds.

Fig. 5 Heated Oxygen Sensor 1/2, 2/2:

The downstream heated oxygen sensor threads into the outlet pipe at the rear of the catalytic convertor.