sr bogging, stalling, wont stay on...etc...

[JEdi 240sx]

hey guys for some reason i thought the nissan curse would go away once i swapped motors...well here's my new dilema. just swapped in an sr about amonth ago. up until recently its been running good. one night i leave my friends house, drive it home and noticed the bov wouldnt open. (i'll list my mods at the end). work on it the next the day to see a lot of oil in my intercooler piping, so i swap turbos cause i was lucky enough to have one laying around. put the new one in and guess what same problem. now it prolly wasnt even the turbo the first time, but here's whats happening. the car will turn on but when i drive it will bog like crazy, and then eventually stall when i come to a stop. bov still doesnt open checked my injectors, fuel filter, and changed the turbo because i was almost sure it was boost due to the bov not opening. oh keep in mind i even swapped bov's to make sure that wasnt it. ive loosened it as much as it will go and still has a hard time opening. it was working before!?!?!?!? car is running like crap and i dont want to risk anything so else, so feedback would be great. thanks guys

[JEdi 240sx]

oh forgot to mention that ive checked all the piping for leaks, and theyre all tight...nistech where are you!?!?!?

[s13sr20chris]

do you have a boost gauge? you need to check the boost/vac signal at the bov and at the manifold.

[JEdi 240sx]

s13sr20chris thanks for the quick reply. ill hook up the gauge tomorrow. if i remember reading right stock vacuum should be at -20psi right? ill double check for leaks, it has to be a leak somewhere. ill keep you posted

[s13sr20chris]

vac cant be measured in psi. its in inches(of mercury, water, or whatever you want really). the standard is inches of mercury. you want about 17-20 inches of vac at idle in the manifold.