[Mk2] [Turbo] Will not boost past 10 psi

[paul t]

I fitted a profec b spec2 to a rev 3 turbo with a down pipe and a single exit exhaust and air fitter and it still will not boost more then 10 psi any ideas would help Thanks paul

[Bea]

could be air leak in vaccum hoses, or faulty solenoid valve in MBC,.... easy way to see it that s the case, buy/borrow a MBC ( only about 20 )... run that,, if boost is fine, you lll narrow the search down of what isnt worng,...

[paul t]

Hi i have looked at all the pipes and they are all ok i used to have a mbc and it would not run more than 10 psi so i thought by fitting a ebc would fix it but its still the same .Paul

[Bea]

okey.... well i had a same probkem when i had petrol leaking ( wrong clips used on the petrol lines).... have you tried to check for error codes?

[paul t]

Yes just done that and its all good so i think it maybe the turbo.Paul

[Bea]

try to disconec the tvis valve,.... there s and electric cable that plugs into it, pull it out and also block of the boost pipe that goes into it,.... or you can try to disconect the BC completely, see if you can run the stock boost,..should be 11 psi on rev3, right? that should tell you if your turbo is working fine,... or ask on www.mr2oc.com.... american are very helpfull ...