Thread: 03 WRX Boost query? Help please.
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Old 01-09-2014, 05:52 PM
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Madhou5e Madhou5e is offline
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Join Date: Dec 2013
Location: Kent
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Unhappy 03 WRX Boost query? Help please.
Hello,
A long time lurker but I need some assistance please.

03 WRX. Standard other than Haywood & Scott system and fuel pressure regulator.
Normally boosts at around 14psi but has dropped off to about 8psi. Was intermittent but now only 8psi.
Disconnecting the BCS the car will boost quick and happy (although I haven't driven any distance or not allowing boost to go too high)

So I've got hold of another BCS which I thought would blitz it however, not so. Still only seeing around 8psi.

I'm wondering if there is a boost leak as there is a feint whistle as it spools up so my question is where should I be looking please before I start pulling things apart?

Any help would be appreciated.

Cheers
Mark.
Last edited by Madhou5e; 01-09-2014 at 06:05 PM.
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