[Supras] VSV2 purpose

[Supras Ireland Admin]

Bernie, I believe the VSV in question is also to Aid hot Starting. When the
engine is hot, the VSV will stop
 vacuum being applied to the FPR keeping it at base pressure - during hot
starts the 7m can suffer from fuel evap causing difficult starts, the VSV
insures a higher fuel pressure at rail during these conditions.

Marty
SSi

-------------------------------------------------------------
----- Original Message -----
From: <berniek at technicaldevelop.com>
To: <Supras at supras.com>
Sent: Monday, September 03, 2007 10:11 PM
Subject: [Supras] VSV2 purpose


> Solenoid valve VSV2 Front, under intake manifold on turbo version
> appears to interrupt the manifold pressure signal to the fuel pressure
> regulator and vent the FPR diaphragm to atmosphere?  .  Presumably this
> is to richen the mixture since the engine is started with the throttle
> closed.  But if so, why also have the cold start injector?
>
> When upgrading to a Walbro pump and 550cc injectors, has anyone had
> experience in removing the solenoid valve?
>
> Thanks.
>
>
>
>
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