i just finish swap out the old vacuum lines with the new one wit pills but the old ones have pills in too so i maybe that wasnt the problem with the low boost.. now the only other thing i could think it could be would be the greddy bov... is the setting supposed to be on hard or soft? also the nut thats highlighted came off and i just noticed it could this cuz the problem? my boost is at 13psi

 

i had the same Bov and was licking boost like crazy so went back with the evo IX stock one it is the best unless u running more then 25 psi good luck

 

JDMTIM, if you're seeing base wastegate pressure, then it's because you have the system hooked up wrong. Even if the previous hoses were the right ones and had both pills, that doesn't mean it was hooked up right.

Tell us what boost controller you're using (stock, ebc, mbc?), and then show us exactly how you hooked up every hose.

The BOV is not relevant to this problem, but that's a bad BOV to have.

 

i have to agree with u for 1st time today

 

ok i have the vacuum line with the pill hooked up to turbo and the none pill line hook up to the waste gate..if looking down on the car the lines from wastegate and the turbo are on the right side of the stock boost controller and the left side goes to the intake pipe

 

Well, the long boost hose should be on the nipple towards the front bumper, and the intake hose should be on the nipple towards the firewall, but I honestly don't think it even matters.

You do have the hoses oriented proplery in terms of the turbo and WGA nipples. Does the long hose also have a pill in it near the end by the BCS? It should.

 

It does matter which port the lines correspond too.

I had them hooked up backwards before and it would only stock on WGA levels.

I found that the valve would open up from pressure on the backside of it.

However, I have a type S bov and have no problems with it. I am using a dejon tool stop leak kit with it though.

 

Interesting, I thought they were just connected together on the inside, which is why we're able to cap them off with a u-bend. If not, then that's his problem.

 

when i had the type rs on my car the jam nut came off also. and the screw managed to work itself out to the point that it made my diaphragm inside rip and i couldn't boost more than waste gate pressure.

 

i check my lines over im pretty sure they are straight i brought all new vacuum lines wit the pills already in side of them for mitsubishi.. could it be something else that can cause that?

 

Read what we said above.

 

this bov is a waste of money

 

the car came with the bov i wish i had the stock one... ok update now the car hits 18psi then drops to 15psi and stays there then drops to 13-14 on holds... is it still the lines?

 

bump for a clear solution!

 

That's about right. You're hitting 18psi per your gauge and tapering down. The normal range is 19psi tapering to 16psi, but most gauges are off one way or the other. You're at least in the normal range now.