I have a 93 honda civic with the original motor in it and it has 230,000km on it. Now I have a engine from a 95 D15B7 and I noticed that the sensor assembly was in diff spots on these two cars. On my 93 its on the firewall but on the 95 engine its on the throttle body, and also I noticed that the 93 has two hoses coming out of the sensor assembly on the firewall but no the same on the 95. Should I just ignore the sensor assembly on the throttle body of the 95 and use the one from the 93?

 

Well, what model of car do you have (more specifically, do you also have a DX or LX?)

If it bothers you, just swap the TB's. Be sure to use a new gasket.