After all of these posts, I've got to admit
I'm ( still ) a little bit confused??
And, I'm surprised our electrical guru hasn't jumped in
with the stern correction that he addressed to me once.
And that was; don't 'just' jump in swapping parts around.
Do the Basic & necessary testing.
First of all Is there power to the dern thing ???
Does th ECU have power?
Do the Injectors have power?
Start with the crime scene & work back! ( thanks TV :o)
best,
JC...

-------------- Original message --------------
From: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>

> Try this :
> Unplug the ecu. Energize the main relay, whether by turning on the key or
> jumpering or hot wiring the main relay, or however.
> Check 12 volts on one wire at each injector plug, with the plug not plugged
> onto the injector, it should be at all 4 injector plugs. Put the plugs back
> on the injectors.
> Then find the pin at the ecu for each injector, and supply ground to each
> pin, and listen for the pertinent injector to click. I forget if you are 1.9
> or 2.1. I think 1.9. my Bentley for an 84 or 85 shows each injector has
> it's own dedicated wire to the ecu.
> This test proves that each injector gets 12 volts, that each injector can
> at least click, and that the wire harness is able to supply the ground side
> of circuit for each injector.
>
> ( did you even try just touching each injector to 12 volts, like on a
> battery, like testing a light bulb ? - that would be a logical thing to
> try, just like testing a light bulb on a battery with a couple of jumper
> wires, and listen for them to click. )
> But do that test above.
> As far as ability to trigger the injectors goes , it tests the whole circuit
> except the ecu.
> Scott
> www.turbovans.com
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Vdub Guy
> Sent: Friday, December 28, 2007 4:21 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Daily Update On My Injectors
>
> OK, , today I obtained not one but 2 used ECU's, 6 used injectors, and
> while I was at it got the entire wiring harness out of a 1.9 Vanagon. Both
> ECU's give the same result as my other two. Now the 2 I got today were used
> and unkown, but doubtful I have 4 bad ECU's. Thanks to those who pointed out
> I was checking the fuel injectors incorrectly with my meter. Set at 1X I get
> 15-16 ohms. Now, I started dissecting the harness I got (damn sure less
> complicated than the mountain of wiring I have in my basement from my Suby
> donor!). From the ECU plug I found continuity between pin 7 and brown wire
> with a white tracer ,which goes to the cluster of grounds on the head. I
> assume pin 7 is ground to the ECU, as each injector shows one side to pin 7
> (Bentley). I did NOT get continuity from any of the injector plugs to pin 7.
> So, I head out to the Vanagon, unplug the ECU, I get continuity from pin 7
> to the head. I also get continuity between one side of each injector plug
> and pin 7. So, I
> 'm not sure what this proves, other than I have ground to pin 7 at the ECU,
> but when i check the FI plugs on the engine, apparently no ground with
> ignition on, engine cranking-test light doesn't flicker. Jeff