I have a 1990 Honda accord Ex 2.2 v4. Obd1 code 41. O2 sensor. We changed the one by the catalytic converter. We do not see another one anywhere by the manifold. Does this car even have 2 sensors? Please help! Going nuts! We looked from above, below, and even removed the manifold cover. Nothing!!! If it does, where is it?????

 

Your car only has the one O2 sensor.