ok people one of my mate is haveing problems with his 95 wrx sti subaru,
recently had a rebuild and all was running right, but after a while the car started playing up it would just cought and splutter when he comes into boost.so he has change lamba sensor,maf,plugs,leads,checked earth but still the same the vacume hose in the car when he drives does go to poor,
he had a look to check if any pipes had split but all seen to be ok now he has got to the point were he has run out of ideas so thought i would ask on here for him, there is no engine management light on and he disconnected the battery for few hours but still the same...any help would be much appriciated

 

bump

 

next thing id cheak is fueling ie pipes right way,splits,nipped, vacume hose to the pressure reg etc