Date:         Mon, 5 Jun 2000 11:18:34 -0400
Reply-To:     Karl Bloss <vanagon@MAKAROV.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Karl Bloss <vanagon@MAKAROV.COM>
Organization: Little, if any
Subject:      Re: fuel injectors
Comments: To: John Schaper <JSchaper@SCHSA.ORG>
In-Reply-To:  <2AE6845F8790D311B0D80008C7DFAD51061CC7@FMERCURY>
Content-Type: text/plain

> What are some signs and symptoms of bad fuel injectors?

"Bad" means either delivering too much or too little fuel.  If it's stuck open,
the van will run rich like hell...black smoke out the exhaust, etc.

If it's not opening at all, that cylinder won't fire.

Try pulling them out, ground the ignition (you don't want a spark), eliminate
other spark source (NO SMOKING!) and turn the ignition to "run".  That should
develop pressure in the fuel system.  See if any of the injectors spray or
leak.  Bentley has the spec for maximum leakage per unit time.  Then the
injectors fire into a pan while someone  cranks the car for a few seconds.  You
should get nice pulses with spray.

-Karl

--
Karl & Kristina Bloss - vanagon@makarov.com
1987 Westfalia Weekender "Bev" - 197K Miles
http://www.enter.net/~bloss/vw
VW Shop List: http://www.enter.net/~bloss/vw/vwshops