I've just changed my oil,oil filter,spark plugs,air filter and my fuel filter after all the changes I started my car, it idles but after a minute it dies, I can also rev it up but it seems it gets to a point where it is not getting fuel, I've switched the car on and off for the fuel pump to switch on and off, and also opened the fuel pipe at the inlet before the injector casing to let some fuel and air out with the fuel pump. When it idles there is no missing it seems nice and when I rev it, it also seems nice it is just a sudden drop on the motor and it dies I don,t know if I'm on the wrong track please assist