Boost issues

[Yorkshireviking]

Hi new to the group and new to subarus

I have owned my 1997uk turbo for a week now and believe its not boosting right it shows 8/9psi it has a manual boost controll fitted and previous owner said he had turned it up by 2psi meaning stock boost is 7psi seems very low 

I have disconnected Battery to reset ecu and still having same boost the boost holds so no leaks 

Any ideas before i buy a new boost solinoid

Thanks in advance

[Scoobyghost]

First port of call is to remove that boost controller. Stock boost is 0.9bar or 12.6psi. Id have a strange inkling that boost controller isn't doing anything at all. 8psi would be giving you actuated boost pressure.

Try to chase all boost pipes and reset everything to factory setting to rule out "modified" parts. If you're using a boost gauge it may also be worth checking the wiring for earthing issues or poor power supply.

[mattiekane]

Where abouts are you?

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[Yorkshireviking]

Im in selby north yorkshire bud 

Do the uk turbos boost at 12 or is that just for the wrx scoobyghost

[GeoffLeggy]

Welcome!

I would agree with Scoobyghost and suggest best starting point it to put it all back to stock (get rid of manual bc) and start from there.

[Yorkshireviking]

Thanks lads will go from there thats only mod apart from air filter and 2.5" cat back 

[GeoffLeggy]

Cone filter? 

[Yorkshireviking]

Mushroom thats what came on it  

[Yorkshireviking]

[Scoobyghost]

UK turbos boost at 0.9bar/12psi.

Also look for the restrictor pill in the boost lines. Some newer owners are unaware of them and bin the whole pipe when changing for silicon lines.

[Yorkshireviking]

I dont think it has the restrictor pill i had a look cant see one is that a subaru dealer part of can you get them aftermarket

[mattiekane]

I'm in Thirsk mate, quite happy to have a look with you, admittedly don't know a great deal about Impreza's but specifically but I am a mechanic lol

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[Scoobyghost]

The pill is tiny and sits inside a boost pipe near the turbo.

Borrowed these pictures from Google. If you still.have the UK 2 port solenoid set up it will look like this.

[Yorkshireviking]

Cheers mattie could be a big help i posted a pic on but i couldnt see one will have a proper look tomorow i could do with checking everything will check how boost gauge is plumbed in also will look see how hes done bov 

[stants]

Your a bit far away from a quick visit to me but if you visit leeds much give us a shout

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[Yorkshireviking]

Leeds is only about half hour from me so that would be brilliant bud the whole set up could do with looking over by somebody who knows subarus as i say its my first one can i bring it over one night bud 

[johned]

Go on scoobypedia and you will find the layout of the boost pipes.