Boost Problems

[chopobo]

my car is only running 5 psi when it should be running factory 7psi

i screwed something up

it happened when i was playing around with the boost with bleed valves and stuff but have now returned to stock

i took off the stock blow off valve to trace the outline to get an adapter made for another blow off valve and it had a gasket thing in between the stock bov and adapter

i put that back on and resetted the ecu

now im peaking at 5psi

all the bleed valves are put back to stock

and sometimes at low boost you can hear this weird slight buzzing sound

am i leaking boost somewhere

could it be the gasket? placed it on wrong?

or is my bov leaking?

[qikr33]

skylines have a stock 2 stage boost controller.I am not sure of the rpm but they boost 5 psi say for eg up to 4500 and then 7 from there on wards.Next to your airbox right against the passenger strut tower u will see the boost controller it has 2 vacuume lines running to ot and an electrical connection .make sure that the electrical connection is plugged in right.If this still dosnt work try your mates or another one as thisd is the only thing that will change the boost pressure from ehat uv described.

[qikr33]

sorry mate just read your post properly again and it seems iv phuked up.I didnt realize u had a boost controller.Ok well this is what the car should run at when boost completely wound down because skylines have a 5psi wastegate actuator .

[chopobo]

5psi wastegate actuator?

hmm interesting