Date:         Sat, 1 Mar 2014 10:15:33 -0500
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: Fuel Injector Terminal Check
Comments: To: Steven Shelton <shelton4@GMAIL.COM>
In-Reply-To:  <CACK29c=cNW7ettNRTQeJAmZ=skPAfUyYuWwooHRSfA9J3XeTng@mail.gmail.com>
Content-Type: text/plain; charset="US-ASCII"

Are you checking at each injector with the harness un-plugged? Otherwise you
are seeing other stuff. All the injectors are wired in parallel.  So with
all plugged in the ECU is seeing an ~4 ohm load. At ~12 volts that is ~ 3
amps. If you have the wrong injectors at only 8 ohms each that becomes a 6
amp load which can toast the ECU. The air cooled engine used lower
resistance injectors but there was a resistor in the circuit.

Dennis


-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Steven Shelton
Sent: Saturday, March 01, 2014 9:48 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Fuel Injector Terminal Check

I had a no-start problem that corrected itself.  I'm going through and
checking what I can to see if there is anything out of spec that may tell me
what happened so I don't get stranded 500 miles from home.

I checked the resistance of the electrical plugs at the fuel injectors.
 All four were 8.1 ohms.  According to a ProTraining manual i have, it
should be 14-18 ohms.  It's interesting that they are exactly 1/2 of what
they should be.  I'm not sure what this means and the manual doesn't say
what to do if the resistance isn't within range.