1993 Nissan Quest • 206,000 miles

Have a no start problem on a 93' nissan quest. Started out a a sputtering then got worse, then finally stalled and wont start back up. We have replaced the timing belt, fuel filter, all spark plugs, rotor, cap, distributor and ignition coil. But I still isn't starting. Oh and yes the fuel pump is working. I'm lost, please help!
April 18, 2013.

You may have a clogged catalytic converter. You can check it by banging on it with your hand and listen for loose material moving anround. I am also giving you a walk through diagnostic that might help as it covers the most likely issues and there may be something that can help. Just use the link below'