1990 2.6 Amigo. It gets fuel up to the rail, all 4 cylinders have spark and I just tried a new alternator. Still won't start, occasionally it will run for a split second before it dies. I'm thinking it may be too low fuel pressure, but the pump is only about 4 months old. When I was changing the alternator I noticed the oxygen sensor had worked its way loose and was basically just hanging from the hole, but I assume that wouldn't keep it from starting up. Looking for possible ideas before I drop the tank again.