Toyota Repair: wont keep running, camery, fuel pressure

Question
i have a 91 camery with a 3S-FE 4 cyl....  it all the sudden wont start... well it will start for like one or 2 seconds but then always dies.... i replaced the whole distributer unit and the igniton ignitor but still the same>>> could it be the fuel pump and how would i know...thanx

Answer
If you think that it's a blocked fuel line or faulty fuel pump, you need to test the fuel pressure. There are many possibilities that mock your problem.

This might sound remedial, but is the fuel tank empty? You would be surprised how often this occurs.