Could really do with some help from the tech bods out there.
Heres the story so far-
J spec tt,auto 1994, always felt a little slow so fitted a boost gauge plumbed in as per http://www.mkivsupra.co.uk/ to confirm any boost worries-
first turbo boosts to 0.5/0.6bar,then at around 4000revs boost drops to 0.2/0.3 bar and stays like that till the next gear change(then same happens).
Checked hoses,all fine,checked iacv vsv and theres no resistance(open circuit)-brilliant i thought problem solved.
Switch to TTC so i can bypass said vsv(temporary measure only)
Now boost starts at about 3000revs and by 4000 im getting 0.4 bar steady to the redline.
This sounds like T2 not working-any ideas.
I have checked the following-
The Bov is working(blow test)
The wastegate actuator is working.
The iacv actuator is working (in TTC)
The pressure tank is holding pressure fine infact after a run the EGCV remains open,then if i remove the pressure hose to it-it closes fine,then opens as expected at 4k ish.
I assume this isnt normal-ie i thought EGCV should be closed at low revs?
Any help gratefuly recieved!