you can always do a simple fuel pressure test. Pull the hose off the fuel rail two 10mm bolts coming right off the fuel filter and take that hoe and feed it into a empty bottle throw the a few cranks at the car to see if your getting fuel
Your catalytic converter might be clogged, does is smell like rotten eggs? Does it blow white or black smoke. If it's white which is my guess it might be your head gasket or antifreeze getting into the cylinders. I would find someone that is in your area that knows DSM's. Just search under the...