not a peugeot but a non-working gasoline vehicle

friends, we have a mercedes brand vehicle, v8 engine is working on the gas, it stops immediately, I give gas 2 seconds, it stops again, the gas does not work at all, gasoline comes from the hose, but again it does not work, we looked at a master, the intake manifold gasket will change the air, I wonder exactly what could be the problem.

I know that the intake manifold does not work if it gets air, shaking makes misfire. there is something else

If it is not expensive, I recommend you to change it. Since the fuel pump has no problem, it makes sense for the master to say.