Cadillac Repair: 1994 seville sls dies when i touch the gas, seville sls, fuel filter

Question
I have 94 seville sls...when i touch the gas pedal the engine dies. I've changed the fuel filter and fuel pump. what next?

Answer
IS or HAS the CHECK ENGINE light ever illuminated while driving the vehicle and or has any other lights illuminated or any messages from the message display center ?.

What work or diagnostics of ANYKIND WHAT-SO-EVER have been performed on the vehicle trying to fix this problem ?.