here are the stats i have a 89 tona es 2.5 turbo 5 speed the last owner took the motor apart and replaced it. but forgot how to run the vac lines correctly. after he toyed with it for a while he gave up and sold it to me. i have replaced every senser, the head, dis, w pump,every thing youcould possably replace. nowi have the same problem. i went to a few web sites and found what appears to be the vac scamatic. but it calls for"t"s and oraphases i don't know the size of. the car runs yet the boost guage reads a vac. and i believe the computer is in limp home mode. any held fellows???

 

you only need 4 lines 1 to fuel reg. then1 to the map/ barrow there is a little line that runns from the barr to map. 1 to the wastegate. then 1 to the bov. blow off valve/ spit this one and runn it to the gauge vac/boost try that. i,ve got coming over today to check the timing after a head gasket was change. alan