Thanks for the help Guys. It ended up being the oxygen sensor. Now I have another problem. It snowed and the roads got icy. I took the Loyale out for a spin and she was all over the road. I got her up on a lift and it looks like the bushing at the top of the rear differential is falling apart. I looked on line and called Subaru. The bushing is not available any more. Does any body know where I could find some vintage parts?