Date:         Thu, 7 Feb 2013 01:37:12 -0500
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: No Start Cause: Relay Failure. PICS, Thoughts.
Comments: To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
In-Reply-To:  <5112DD6D.4080206@turbovans.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 05:47 PM 2/6/2013, Scott Daniel - Turbovans wrote:
>Every EFI system ECU  I have ever seen energizes the fuel pump relay by
>supplying ground to it.  It's the common strategy.

A lot of electronic switching is done that way because the
open-collector switching circuit is cheap and efficient and versatile.

Yrs,
d

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