O2 sensor issue
'88 Sport, '89 5.0HO from a Stang, speed density, T5...
The issue is that since I installed the new BBK X pipe yesterday, and slapped in a couple of used O2's I had laying around, the car won't run, or barely even start with them connected. If I unhook them, it runs great, idles great, but of course smells like it's a little rich.
I know I need to pull codes, but would bad O2 sensors cause this?
When I had the Stang's H pipe in there, it never ran like that with the sensors connected. (one of the O2's in the x pipe is one from that Stang H pipe..)