overboost

Thanks guys it was standard when I bought it, pics were down at Cattedown, Plymouth.

MY2003 Subaru Impreza. Engine: 2.0 EJ20 JDM engine Mongoose 3" stainless steel exhaust system Mongoose matched exhaust turbo down-pipe & up-pipe Cosworth panel filter Prodrive up-rated silicone intercooler hose kit Excedy Stage 1 clutch kit HKS Super blow off valve Walbro uprated fuel pump COBB 3 port boost solenoid COBB silicone hose kit Custom live re-map carried out by Enginetuner Brakes: Cosworth performance brake pads fitted Uprated brake lines Suspension: Hotbits DT1 coilover suspension Hotbits Adjustable top mounts Hotbits uprated suspension bushes all round STI front strut brace STI rear strut brace Wheels / Tyres: 9.5x 18" Rota Grid Drift concave alloy wheels finished in Hyberblack finish Rota anodised red tuner wheel nuts Nankang NS2 225/35/18 tyres all round Exterior: Custom smoked front headlights 8000k HID headlight upgrade STI rear spoiler STI side skirts 3/4 front plate Interior: Custom made single DIN gauge holder (boost, oil temp & water temp) Standard Recaro seats

Simples, but it ruined my weekend! lol At least it is sorted now (touch wood) and I can carry on with my big power plan

Problem solved, took it to Martin @ Alan Jeffrey this morning; the restrictor pill was too small and partially blocked. New one fitted, and the car boosts correctly and does not surge anymore.

I've got it booked in with Alan Jeffrey's tomorrow now, hopefully they can find our what's wrong with it...

Pink ones please can I PayPal them and you post them? Thanks.

I didn't realise stickers and key rings were for sale doh!

I will, the annoying thing is, I may well have fitted the bleed valve correctly, but if the boost gauge has gone funny at the same time as me kinking the pipe to the solenoid to lower boost (what are the chances?!) then I've been messing about all day for nothing

No, that's my view on it too lol. Damn cars! Thanks for the help.

I'm wondering now if its the gauge?! Swapped the pipes over on the solenoid and got 2psi, swapped them back and the car is certainly boosting over the stated 4psi, it pins you back in your seat! Very strange. I've removed the gauge now, and checked all the connections and pipes etc.

Yeah and everything is as it was, but still not right. The restrictor pill is in place too.

Nothing, but it wasn't running right with 20psi. Only thing I did was clamp the pipe going from turbo to the standard boost control solenoid which gave me 5psi but no surging etc... But i can't get the bleed valve to work in its place no matter where I put it.

Lol, I was only joking... For now. Measuring boost on a boost gauge, plumbed into the blow off valve. Before the changes, would peak at 22psi and hold 20 which is too high. I tried to fit the bleed valve to test it at say 15psi to see if the fault occurred. With the car running base boost there's no fault, but that's only 4-5psi and not any good long term.

I've put it all back the way it was... and it STILL wont boost over 5psi. I give up, its for sale.

It should still boost without the restrictor pill shouldn't it?! I have put it back in, and it makes no difference... Removed all pipes, standard solenoid plugged in to the electronic part, but the hoses are both blanked off. Tried it set up like this... And like this... Only this is the bleed valve I am using: Neither way works.