2.2 vectra not starting

[sjobes90]

hi I have my 2005 2.2 petrol vectra that does not want to start it turns over but not starting I have replaced the spark plugs the coil pack the air flow sensor and the crank shaft sensor I can smell petrol when I'm trying to turn it over so I don't think it will be the fuel injectors I can hear my fuel pump working when it does tick over (after a while) I have to keep my foot on the accelerator but does not Rev up can anyone help?