me seems to remember something about resistors.  this might get you headed
in the right direction.

http://www.ratwell.com/technical/FISwap.html

jonathan

On Thu, 5 Oct 2006, Tom Young wrote:

> Hi all:
>
> I got a fuel injection harness to replace the one that was destroyed in an
> engine fire.  (Air-cooled Federal Vanagon.)  I figured I'd do some testing
> of the harness before going any further with it, but I'm stumped right at
> the get-go and I'm wondering if there's something here I don't understand.
>
> I first tested the wire that connects to the ignition coil; a continuity
> tester (test light and a battery) attached to the wire's spade connector at
> one end and terminal 1 of the big black ECU connector (as indicated in the
> wiring diagram) at the other end lit up.  Cool!  It's a good wire.
>
> I then went on to test the 4 fuel injection connectors and here's where I
> got stumped.  Looking at the wiring diagram, one of the two wires at each
> fuel injector connector runs to a terminal in the ECU connector and the
> other wire runs to the white plug that attaches to the right side of the
> dual relay.  In each case I registered continuity between one terminal of
> the connector and the appropriate terminal in the ECU connector.  But, when
> I went to do the test with the other wire in each of the fuel injection
> connectors I got no indication of continuity at the white dual relay plug.
>
> The harness certainly *looks* OK and it's only an overabundance of caution
> that persuaded me to test it in the first place.  According to my reading of
> the wiring diagram I should be showing continuity between the FI connectors
> and the white dual relay plug, but I'm not.  Do I have a bad harness here,
> or am I missing something in my reading of the diagram?
>
> TIA.
> ----------------------------------------------------------------
> Tom Young
> Lafayette, CA 94549
> ----------------------------------------------------------------
>
>
>