Rosssub

But it was completely blocked off, doesn\'t that rule it out?

I blocked the pipe between hose 22 and the relief valve with a 1/2-1/4 inch socket adapter, went for a drive and it made no change.

Aw I was playing with the wrong end of the hose lol. Ok so Ive removed the secondary bypass valve, vacuum on hose 8 opens it/realease vacuum and it closes. I have a vac gauge here, I can suck on the hose for the gauge and reach 17psi of vacuum, with the valve closed I cant get any air through it.

Blowing through hose 8 into BBOD with the green diagnostic plug connected, airflow is bleeding out 2 of the solenoid air filters/breathers inside the BBOD and just switching from one to the other. Though airflow does become slightly restricted when the solenoid switches.

All vacuum lines cleaned, checked and double checked. I\'m in Greymouth, car is standard except for the blow off valve. I have an OBD cable and diagnostic programme which shows no faults. With the green diagnostic plug connected and ignition on everything is working fine. Also the rear section of the exhaust has been replaced and the cable is missing from behind the jack compartment, could this be anything to do with it? I hear the electric motor working when I turn the ignition on.

I\'ve checked the ECV, just double checked it. With actuator rod undone the flap moves very freely to fully open and fully closed. Have also checked the ECV actuator tank/diaphragm, positive pressure to top hose moves the rod and holds pressure and vacuum to bottom hose moves rod and holds vacuum.

Hi folks, I have a 2000 BH5 GTB rev b manual. If I change gear near VOD it stays in VOD for up to 45 seconds before boost comes back. When accelerating through VOD the boost drops off at 4000rpm as secondry kicks in but then the boost seems to rise as slow as the rev counter, it wont get to full secondary boost till about 6000-6500 revs. My primary boost is stable at 12 psi(0.8bar) at full throttle, once secondary reaches full boost it\'s stable at 16psi(1.2bar), it\'s just taking forever for the secondary boost to kick in. Things I have tried/checked (thanks to the brilliant info on this site) -Cleaned out BBOD -Cleaned out primary duty solenoid -Checked intercooler inlet air valve is working -Checked exhaust control valve is working -ECU shows no CEL\'s -Pressurised vac system, no leaks -Checked routing of all vac hoses -Checked location of restrictor pills -Checked condition of secondary turbo All to no effect. I know that my older style HKS sequential BOV (not adjustable) has a slight leak under full boost and I have brought a factory bypass valve to replace it with just waiting for it to arrive. Are there any other possible causes that I should check out?

With hose \'10\' mod

I got bored:

Sweet, thanks.

Hi, I have a 2000 TT BH5 GT Legacy with a leaking old style non adjustable HKS ssqv BOV. Im trying to find a factory bypass valve to fit. Will this one from a BG5 be ok? http://www.trademe.co.nz/a.aspx?id=567644722

Madorej20tt, when you say "bov was leaking and you plumbed it up so it doesn\'t work", Do you mean you have blocked it off? Wouldn\'t that cause an air flow fault/wastegate presure fault/TT system fault and all sorts of poo.When you take your foot off the gas all the boost pressure is being forced somewhere?

http://www.uklegacy.com/forums/index.php?showtopic=11043