The cold start valves are battery voltage devices. The air cooled injectors
are current operated devices. 3 ohms at 12 volts = 4 amps. They will burn
out fairly quick if left energized. The water cooled injectors are ~ 16 ohms
so they draw .75 amp.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Scott Daniel - Turbovans
Sent: Tuesday, December 07, 2010 1:35 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Fuel injector operating voltage

they'll be all right operating them on 12 volts for bench testing.
or at least, I can say I have operated hundreds of injectors and cold start
valves on 12 volts and never hurt one.

----- Original Message -----
From: "zzyzx" <zzyzx9@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, December 07, 2010 9:39 AM
Subject: Fuel injector operating voltage

> Is there a source online or one among us who knows the operating
> voltage of the fuel injectors & cold start valve on my stock
> California 1980 Westy 2.0L.
>
> A friend has indicated 5 volts and cautioned me not to exceed that to
> avoid damage.
>
> I am building a bench tester/cleaner for the components.
>
> TIA