So I Had A thread Going but no one is helping! I was having no trouble at all with my car it was boosting just fine around 15-16psi. The other night I went to pass on the highway and noticed I was barely boosting 4-5psi. I have done the Boost bypass mod and it still will not boost normally. My IC Pump is working.. I checked the BBV and it is closing all the way. All vacuum lines are fine... Some one said to try a boost leak test but I do not know how to do one. PLEASE HELP!

 

I thought we solved your problem man....

It sounds like you are leaking boost. You've had the blower off a few times now. Have you changed the blower gasket yet? Did you torque the blower down to spec?

 

Blower gasket was fine. As far as the blower Spec. Im not sure but its definitely super tight.... It was doing fine for like 2 weeks. right around 15-16psi. But just out of nowhere it started to do this. Where should I check for the boost leak? I see people talking about the CAI. If my Clamps somehow came loose would that make it do this?

 

Any type of leak in the air induction system can cause an issue. Check all connections, hoses, etc.

 

what fxed it last time might want to look there first because that could be what is causing the problem again and a leak around a coupler on your cai wont cause the problem you are having

 

Does it hesitate and bog once you hit 4-5 psi?

 

This.

 

It was the Boost bypass Valve not closing all the way last time but that was a problem that had been going on for awhile. That problem was I put on smaller pulleys and still only got like 12-14psi. When I fixed it I was running great right at 15-16psi. Then just 2 weeks later im running at 4-5psi now.... Im hoping its just a boost leak somewhere but if its not on the CAI side Im lost because all my vacuum lines are new and working fine And I doubt that its the gasket on the blower because when I fixed the BBV it looked brand new. Do I have all the Induction points where it could be leaking covered?

 

no bogging or hesitation.

 

dude if it was leaking preblower it would show lean on a afr guage unless it was tuned that way the cai has nothing to do with building boost all of the boost is built post blower roter so if you got a boost leak it is going to be blower or gasket or bpv lim gasket so go start with what fixed the problem last time that problem may be back

 

lol Chill Mr.Belvedere! I understand That the CAI has nothing to do with Building boost. Like I said the Blower Gasket looked Brand new when I checked it 2 weeks ago. What is a BPV lim gasket? What I did to fix the initial problem was: Took the blower off. Cleaned the BPV with carb cleaner. saw that it wasnt closing all the way. Adjusted the screw on the side of the valve to let it close all the way. Put everything back together. And It fixed the problem and ran great. And now I have this problem that is a more severe boost loss. I have a buddy that told me he could do a Boost leak test but he's never done a supercharged car before. He works on DSM turbo stuff. Anything I should make sure he doesnt do? Or is it virually the same for turbo and sc?

 

Btw I dont have any fancy AFR gauges to see lean or rich yet only CEL's

 

lim= lower intake manifold(what the blower bolts to) bpv= bypass valve that adjustment screw shouldent have had to been adjusted unless it came loose ive never seen one of those have to be adjusted not saying it isent possable doing a boost leak check on a sc is no different then a turbo car

 

How do you spell Houston wrong?

 

Dont you worry about it! lol At least it made you look!!!!!!

 

I didn't read the first post. I went straight to the bottom to tell you it's Houston.

 

Yeah I was scared to touch that screw but it fixed my problem.. I could see that it was making the valve stop to early. But Im going to do the boost leak check tomorrow and see what happens. Is it fine to drive my car around?

 

If it's your only means of transportation than just stay out of boost, and you will be fine.

When I say stay out of boost I mean don't go WOT or beat on it.

 

it isent going to hurt anything to drive it i wouldent beat the immortalf **** out it but normal driving wouldent hurt and i bet you find the problem is with the bypass valve

 

then you don't have a leak

im gonna go out on the limb and say that your previous problem has gotten worse...there aren't really that many possibilities that can affect boost levels

 

Sounds like a BPV problem to me.

 

Its either the BPV or the blower itself has taking a poop meaning maybe the rotors are worn and not making positive pressure?Pull the blower off and check the rotors inside.You can get a vacuum/pressure tester from Autozone,Checker,Oreilly,who ever you use for parts and check the BPV actuator to make sure the diaphragm is not leaking.

 

Ok so on my way to work this morning I was watching my boost gauge and it was barely moving at all no matter how much throttle I gave it stayed right around -20 never even came close to zero.... Silly Question could it just be the gauge? I can Here the Super charger whining still if that makes a difference.

 

Yes.... The boost guage in these cars has been known to **** the bed. Check into that.

 

Any easy ways to check the gauge? I really hope thats all it is.