Date:         Tue, 7 Dec 2010 13:59:51 -0500
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Fuel injector operating voltage
Comments: To: zzyzx <zzyzx9@GMAIL.COM>
In-Reply-To:  <4CFE716F.10107@gmail.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 12:39 PM 12/7/2010, zzyzx wrote:
>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.

Bentley says that the AFC engines have a ~6 ohm resistor in series
with each pair of injectors, and that the injector resistance is 2-3
ohms.  It also says that in the California models the resistance is
built into the ECU.  Neither the 80/81 nor the 81/82 schematics show
this.  If this is true (and they have a photograph of the resistor
pack on 24.6) then the voltage that the injectors see would be about
1.25/7.25 x system voltage of ~14 volts, or about 2.4  volts.

Yours,
d