Hello everybody!

My volvo starst and runs for a few seconds and then sputters and dies. If I press the gas pedal it will continue to run although not very smoothly; as I let the gas go, the engine will die. I have checked the fuel pump relay, it seems to be working ok, replaced the crank position sensor, spark plugs and fuel pressure regulator, fuel pump is ok; still same problem. Do you think camshaft position sensor? Plugged fuel injectors? What else could be keeping the car from running? It began acting up a week before, it would die when coming to a stop some times, then suddenly refused to run. Can you give some insight on what could be wrong?

Thanks a lot!