My bro-in-law has a virsion 3 Impreza type R and it is only boosting to 0.5psi whats causing this? Thought all scoobys hold 0.9psi as std ??
Thanks in advance

 

sounds like its in limp home mode, could be lots of things, is there any fault codes?

 

The speedo isn't workin which makes it run only to 4,000 rpm with the 'engine check' light on.
We un-pluged the battery and left it for half hour then pluged it back in (engine check light went out) But it only boosts to 0.5psi?

 

speedo must work.. wont get over 0.5bar until you fix that

 

Ok thats the next step then take out the speedo cable and the dash and c whats going on.
Cheers People

(any more ideas welcom just incase anyone else has had the same thing)

 

i though stock is around 1.15 bar max boost

 

Just fixed the speedo cable and same situation 0.5psi What else should i look for?

 

did you reset the ecu after u fixed speedo cable?

i would reset ecu then go for a drive round see if you get cel, then see what fault is

 

When u say re-set the ecu do mean dis-conect the battery for a wile?
Or is there another way to re-set the ecu??

 

I have reset the ecu via connecting the plugs under the dash, (no fault codes came up?) and it still only holds 0.5psi?????
Anyone have any ideas i'm stuck for answers now? There r no pipes split or disconnected that i can see?

 

you changed the boost valves recently
you fitted a boost controller i mean

 

No i haven't changed any boost valves recently? It hasn't got a boost controller either.
The car has been off the road for the past 2 years as the owner lost his licence ?

 

As standard mine used to peak at 1.24bar then drop off a bit

 

i recon the boost solenoids gone
i unpluged mine to fit a avcr had a problem with boost
in neutral hit the gas, if it hits 0.5 bar then cuts out around 5k revs its same as mine try unpluging the sol, then see if theres a change,
my engine light came on with this problem, pnce i plugged the sol back in all fine and light went off,

 

Its got one of these in it 'Blitz multi speed turbo timer' Can this have anythin to do with the boost? as it reads the speed and how fast the car has been driven could this influence the boost pressure?

 

sti v3 no type r but v-limited! mine does 1.35bar max, dropping off to 1.15bar
cheers
Dan