Yep, the MY99/00 non-STi spec motor is "EJ205..."

 

swt cheers for dat.
do u know wat the standard psi is for these?
my 1s pretty standard and I dont really no much bout cars its got,
vf30 turbo, fmic 2.5" piping, stainless headers an up-pipe and possum bourne siamese 2.5" dual down-pipe. (not sure if all of its relevant)

 

It'll be in the region of 0.8-0.9bar (11-13psi) for that amount of power, I would have thought.

 

yea but mines only boosting like 8 psi

 

You defo sure that's PSI... and not BAR?!

 

yea Iv got a prosport 30psi gauge

 

Well that's not right then.

8psi = 0.55bar which is pretty much raw wastegate cracking pressure.

I'd try another gauge first - just to rule that out.

Then I'd run a diagnostics check using the plugs under the steering column.

If nothing appropriate comes up, I'd then try cleaning the boost control solenoid with carb cleaner... Then go from there......

 

when I got the car the gauge needle was goin up an down not giving a exact reading the vac hose was conected to wrong place so i Tee'd it off the bov line an put this gauge in witch is new.
um wheres the boost control solenoid? (sori dont no much)
iv got a boost controler but wud rather not use it or r they algud to use

 

Sound's like the boost gauge is all sorted and ruled out then.

I'd remove/disconnect the controller i.e. try to get everything back as close to OEM as possible, before commencing troubleshooting.

The BCS on a 1999 car is a small rectangular brass item with a couple of vac hose connections to it. It's mounted at a jaunty angle off of the driver side suspension turret. It's just an ECU-controlled electro-mechanical valve that rapidly opens/closes, to give max target boost when on full throttle (most of the time). But if the ECU senses 'danger', then it can limit the max boost by keeping the valve shut or allowing a low wastegate duty cycle, etc...

 

ok i took out the boost controler i'l look at the BCS 2moro
thanks 4 da help

 

 

my old scooby was a 94 wrx and the number was GC84DD but would this be correct as doesnt this number mean 97 sti??? And another scooby im looking at the moment thinking of buying has the code GC846J and its a 99 wrx but i cant find anything to match the 46J on the code chart???

 

You're missing the MY letter between the 8 and 4, if so.

1994 is either MY94 ("B") or MY95 ("C").

1997 is either MY97 ("D") or MY98 ("E").


Don't recognise that code (plus, as above, it should be 7 digits long, anyway!). You sure that's not the start of the VIN code (rather than the Applied model code)?!

 

hey havn't found the BCS cud it have been taken out??? I know it sends signals or wateva 2 the ecu so probly cudn't b remove???

 

I probly jus got bad eyes

 

It can be removed yes.

This could well be the reason why you're getting only 8psi then!

Because, if it is removed, then unless you have a manual boost valve, or a restrictor pill - with a smaller hole for the 2-port plumbing - fitted in place of it, you will only have the raw wastegate pressure available i.e. c.0.5bar (or 7-8psi) anyway...

 

so if i put the boost controler in wat psi shud i put it on???

 

You don't "put on psi", as you say.

You just need to re-plumb in the 2-port correctly, and ensure the correct size restrictor pill is in the short piece of hose between comp nozzle outlet and T-piece (if it's missing, of course) - see diagram below. If everything's okay, the ECU/BCS should allow max. boost again.

Also make sure any aftermarket boost controllers are wholly removed (if you have any, of course).

Here's how everything should be plumbed together:-

 

yea my 1s got not like that at all where it says line 1 t-fitting line2 an3 theres only 1 line from wastegate 2 turbo, thats where the BC was conected.

 

Yeah, then a previous owner has simply bypassed the OEM BCS system with a boost controller.

Junk the BC, and reinstate the 2-port BCS and plumb in as above...

 

yea bro found it, the line 3 is short an has been plumbed into a vac line, jus need sum hose an what is the correct size restrictor pill an where wud i get 1? wreckers???

 

http://www.cobbforums.com/forums/ima...mWorksv109.pdf
good stuff
http://www.cars101.com/subaru/vin.html

 

can i smiply get a restrictor pill made?