my friend has a 2002 rsx type-S, and his car is throwing a p1166 code. ive read that changing the front o2 sensor should solve this problem. however, ive been searching online and cant really tell if ive been looking at the right o2 sensor

there is one sensor called the Air Fuel Ratio Sensor, part no. 36531-PRB-A01, that is located before the catalytic converter. there is another sensor called the Middle Oxygen Sensor, part no. 36532-PRB-A01, located after the cat. is the right sensor to change the Air Fuel Ratio Sensor?

thanks in advance.

 

the A/F sensor should be the 1st o2 sensor.

 

p 1166 is code for air/fuel sensor circuit mal function