Fuel pump or coil?

[GAdriver]

So i have the stuttering problem too. I have new fuel filter, plugs, and wires. So would the problem be the ignition coil??? It studders at boost real bad. I have put injector cleaner in it pleanty of times. Or could the problem be the fuel pump.

The dealer said it sounds like a dirty "throttle box" or dirty injectors.
What is it??? Some help please????

 

[GAdriver]

come on i need some help please.

 

[Logue]

do a boost leak test, check your egr hoses

 

[GAdriver]

I did the boost leak test and i couldnt get nno pressure in cuzz when i got so much pressure it all leaked out the bov(stock). It wasnt much pressure either, cuzz i was using a bicycle pump. I thought the egr crap was a solution to idle surge? Not stuttering.

 

[drillo99]

should not be the fuel pump they usualy just go altogether, I know you said you had new plugs but I once used a different brand and although they were for my car I studderd baddly with them once boost hit. however it could be the coil they tend to go on are cars. one more thing when you did the leak test you did open the throttle plate to check past the throttle body ?