GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: Manford on 10 July 2017, 09:28
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Description from v.c.d.s - Pressure drop between turbo and throttle valve (check D.V)
Assuming that means the recirc valve could be playing up?
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Most people have had this code at some point - not necessarily the DV but generally associated with the vacuum system and hoses degrading over time etc. Worthwhile checking the whole system over - cheap and easy to sort any split hoses with some oil line or silicone hose off eBay (depending on application) whilst you're at it.
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Thats cool, I took same approach with the Wrx, cheaper, quicker and easier replacing the piping than looking for a pin prick hole.
Do you know what Id pipe I need?
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4mm will do you