I got the O2 sensor changed back to the old one and after driving a few days it seems to be running a bit better but still not even close to great.


Old one on the left, replacement on the right. The replacement only has ports on the tip, nothing on the sides.

I picked up a intake gasket set cus they are really inexpensive. I am going to wait to dig into that until I can check the running vacuum levels and weather it is bobbing around all weird.

I suppose that I should get a fuel pressure gauge too so that I can check that the regulator isn't pooched.

Any other suggestions as to what to look for that I may be totally missing?