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Date:         Wed, 8 Aug 2007 14:39:38 -0700
Reply-To:     Mark Drillock <mdrillock@COX.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mark Drillock <mdrillock@COX.NET>
Subject:      Re: where does power to the fuel pump come from?
Comments: To: Matthew <mpteleski@YAHOO.COM>
In-Reply-To:  <349417.61751.qm@web56410.mail.re3.yahoo.com>
Content-Type: text/plain; charset=us-ascii; format=flowed

The key does not turn on the fuel pump. The key turns on the ECU power relay, which turns on the ECU, which turns on the fuel pump power relay when it thinks it should.

The above is also an explanation of why the first entry into the Vanagon Wiki has a major error.

Mark

Matthew wrote:

> my singlecab syncro died halfway across my yard with a > load of sand (for the kids sandbox). Upon > troubleshooting, the fuel pump (NEW 1000 miles ago) is > not turning on with the key. Hmmm, So i hot-wired the > fuel pump, and it still doesn't start, even thouhg the > pump now humms away (yes, 1/2 full tank of gas) Hmmm. > What could have died that would keep the pump from > pumping and let it run, at all. Ignition switch? > thanks > matt > 4 buses > 8 bikes > a lot of guns > a volvo v70 awd (with a viscous coupler awd system > like the syncros we have). > > "may the four winds blow you safely home" > > > ____________________________________________________________________________________ > Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 >


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