I JUST bought a 1995 Evo 3, drove it around a little and all the sudden, I can go full throttle, it spits and sputters, I've tried to find vacuum diagrams, I have a evo9 turbo on it, is it a boost leak problem? I've checked my plugs they are good, my maf seems to work, haven't checked my throttle position sensor, could it be a vacuum leak? I've sprayed brake clean all around and nothing, I can't figure it out I'm new, and I just wanna drive it and have fun with it

 

do a boost leak test.
just search on how to do it... lots of threads on doing it.