Ferrari Mailing List: Re: SOLENOID VALVE

[Michel Savard (mysavard]

Obviously, we don't have the same parts manual. On both pages, it's on top 
of the engine, passenger side. My manual is  222/81, #95990236.
Michael Savard
----- Original Message ----- 
From: <pbennett [at] Paul-Bennett.com>
To: "Michel Savard" <mysavard [at] videotron.ca>
Cc: "The FerrariList" <ferrari [at] ferrarilist.com>
Sent: Saturday, August 18, 2012 7:52 PM
Subject: Re: [Ferrari] SOLENOID VALVE


> Question From: "Michel Savard" <mysavard [at] videotron.ca>
> > > > 1981 308 GTSi: What's the use of the solenoid valve (Tav 9 #36 or Tav 
> > > > 12 #52)
>
> 328/308 parts manual:
> Figure 9 show the emissions air pump system and part #36 controls the 
> cutoff temperature for air blowing into the exhaust, turning it off until 
> the engine warms up.  It is controlled by the temp sensor under the water 
> expansion tank (as is the high idle rpm).
>
> Figure 12 describes the EGR system which limits gas vapor leaking into the 
> atmosphere.  In the passenger footwell there are catalytic temperature 
> slow-down warning light controls next-to-which is an EGR controller gizmo 
> which turns off power to part #52, the EGR electrovalve, limiting it's 
> operation to engine speeds below 4400rpm.
>
> Both electrovalves get +12v power from the ignition switch at left fuse 
> #1.
> Both electrovalves get ground power from their respective controllers.
> An electrovalve controls air or vacuum flow electrically.
>
> GL
> p