***Blackonorange's STS Turbo Build!! - Done by Speedtech Saskatoon***

blackonorange

And on top of that the bov don't open and the compressor surges eveytime

hindi1973

having the same problem in my customers sts 370z , we tried everything to make it boost again we even made a direct hose form the turbo to the wastegate so it can give the maximum psi of the turbo and it gave 3psi , no leaks , we made a smoke test , their was a history of a bad pcv valve which made oil come out from the exhaust ,went all the way to the intercooler,maf sensors, piping etc etc , fixed that and cleaned everything and still doesnt build boost , check engine comes back on and idle at 1100 , spoke for ben STS went step by step with a confrence call with my mechanic and it looks like the 3 port solenoid is messed up since we made a and its suppose to make a ticking noise and its not , this is the last solution if not then its a bad turbo which went bad after 1000 miles or so , although their is no smoke,shaft play or anything , so lets see what happens after changing the 3port solenoid . wish you the best .

p.s all of this took place after loads of exhaust leaks that happened and fixed them then changed tha bad place of the boost controller which was under the back bumper . since then problem after problem has been happening .

blackonorange

What's the 3 port solenoid ?

hindi1973

we tried all kind of ways to make the turbo build boost to the maximum by making a direct hose from wastegate to the turbo , this way should give us the maximum psi possiable of the turbo , but it also didnt , we closed the exhaust side of the wastegate to see if vents air we said it might be a bad wastegate spring but its closed and no air , the solenoid am talking about is the pcv swith
we applied 12v to the post on the PCV switch and listened for a click , their was nothing , the hose that was in the intake we pulled out and everytime we go on boost it spills alot of air/oil out side like crazy which means the crank case is getting filled with boost insted of the turbo ,

The PCV switch is grounded when the body is bolted down (Normally open)and then a 12v signal is applied when 1psi of boost is applied (switch closes) then it vents to the atmoshere through some small filter on top of the switch

i guess this is our problem , if its not then i dont know wht is the problem other than the turbo it self . i am waiting on STS BECAUSE we changed both pcv but didnt change the switch , and hoping they can send us the switch , it looks like it has 3 ports or something similar

we are not in california and i am really intersted in deleting this pcv switch thingy once and for all , i know its against some states in usa such as california , all info is appreciated in getting this switch or deleting it completely .

thanks