I have a big problem. Over the winter/spring I took my motor out and cleaned everything up and hooked on a new five speed. Well when I got the mods on and put it back in it is doing this weird start and stall thing. When I crank it over it will start and idle real quick for about a second and then it dies. I checked all the connections and they are all good. The only thing I noticed was that I only have one oxygen sensor. Does anybody know if only having one will cause that? I am getting the other one but I just want to know if I can look forward to it running with that or what else needs done.