Fuel cut off

Hey i took this guy for a ride that kinows alot about these cars he said i have fuel cut off and i i would like to know what can cause that and should i change the fuel filter and he also said it can be a boost leak which i really dont know how to test for im thinksing about putting a front mount with pipeing but i really dont spending much money on a front mount so whats a decent brand and can you please give me more info thanks for your rime

Use the correct subforums please.

man you asked like a million things at once focus what your paragraph is asking cause its so disjointed I don't even know where to begin