Hello I have a 1990 Toyota pick up truck. Along time ago i was driving it and it just shut off on me at a stop light. Ever since then it won't start. I have changed the fuel pump fuel filter spark plugs and oil and spark plug wires. The only way it actually starts is when you spray carberator fluid in the engine. Even then it just starts and shuts off a couple seconds later or just keeps turning over it also has a new battery. Can someone please help meeeeed thank you have a good day.