Everyone,

I just snagged a very nice and clean '94 940 Turbo Wagon and so far it has been running great. However, when I got under the car after buying it and I noticed something I missed when inspecting the car...I can't find the O2 sensor! The car has had a new exhaust put in (and it also appears to have a new Cat) and I was expecting to see the O2 sensor sitting right before the Cat but instead all I found was a plugged hole. Can these cars run without an O2 sensor? Or am I just having one of those "Duh" moments and looking in the wrong place? The car was previously in an area that did not need to be smogged but now I have taken it to Portland and get to run the DEQ smog gamut, hence my concern with the missing O2 sensor. Anyway, thanks for the help in advance!

Brian

that sensor is located just below the exhaust manifold in the header pipe.

to see it find the turbo, find the header pipe and feel downward from that connection.

Ahh, that makes sense. I will take a look this evening, I am sure it is there if it is running fine :) Thinking about it some more, it makes sense...the cat is probably aftermarket and so the plugged hole is probably just unused on the 940s.

Thanks for enlightening me!
Brian