Engine Compartment/Exhaust System

Fig. 9 O2S Sensor Location - 2 Sensor System:

Fig. 10 O2S Sensor Location - 4 Sensor System:

The upstream sensor (1/1) is located just before the main catalytic convertor. The downstream sensor (1/2) is located just after the main catalytic convertor.

The right upstream sensor (2/1) is located in the right exhaust downpipe just before the mini-catalytic convertor. The left upstream sensor (1/1) is located in the left exhaust downpipe just before the mini-catalytic convertor.

If equipped with a 2 O2S sensor system, the sensors are located at the inlet and outlet ends of catalytic converter. If equipped with a 4 O2S sensor system, the sensors are located before and after the mini-cats.