another boost problem

[cush]

1993 fd3s. Ok i have owned my car since 2007 and since then i dont think the boost has ever been 100%.

I had no boost on the first turbo so i found the solenoid valve that was gone and bought a new one. Now i have put it all back together with new vacuum hoses and i get the first lot of boost but as soon as it hits 4500 revs all the boost just hisses out could it be the relief valve not shutting when the butterfly valve opens?.

PLEASE HELP

or is it worth simplifying the system i hear people talking about or does that mess the whole system up. Thanks

[neil_jdmr]

Simplify the system along with going non sequential usually doesn\'t fix a problem ,

I drove 200 mile with a pfc to pip to sort my ongoing issue.

Thankfully he had it sorted in a half hour and its been the best money I\'ve spent

[marcusd666]

As above. Mine had a boost issue when I got it was chasing it for months then took it to Pip (WGT) sorted it the same day. So any boost issues now I just take it back to him best money I\'ve spent and still got my hair.

[Mir]

Mine had loads of issues lolll , as above, took it to Pip and the car was sorted!!

Cheers
Mir

[JohnP]

when u replaced the hoses, did u replace the check valves?

i had this problem. found it to be the check valve between the pressure chamber and the Y-pipe above the turbos.

[JohnP]

this might help.

[cush]

ok i think it may be time i finally get to a garage to sort it but only a specialist.
 
 
And thanks johnp i know that drawing too well i have fixed the problems about 5 times since having the car but everytime i fix it i get another one.

[JohnP]

no worries mate. just hope u get her sorted