Thanks Dennis.

I had to wonder, after posting, if in fact something was hinky with
the old air cooled fuel pump wiring. I got in the habit of letting the
pump run a few seconds to prime things, then crank it. Hearing it spin
like that seemed normal to me.

Kind of a blessing, in a way, doing this conversion. I'm sorting out a
problem that could have provided some negative results under the wrong
conditions.

Anyhow, I'll find out soon enough if my new wiring for this Jetta
engine install, is correct.

I hope to fire it up tomorrow!

Thanks,

Neil.

On Sat, Apr 12, 2008 at 7:41 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
> Something was wrong with your old set up. Fuel pump should only run while
>  cranking or when the switch in the air flow meter was closed which
>  requires the engine to be running to happen.
>
>  On the water cooled engines the AFM switch was replaced with the need for
>  the ignition to be pulsing. The short run when the ignition is first
>  turned on is really from the ignition pulse. Crank the engine or get it
>  started and as long as the distributor is turning the pump will be
>  running.
>
>  Dennis
>
>
>
>
>  -----Original Message-----
>  From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
>  neil N
>  Sent: Saturday, April 12, 2008 10:16 PM
>  To: vanagon@GERRY.VANAGON.COM
>  Subject: Fuel pump on for one second normal w/key to "ign." position?
>
>  Hi all.
>
>  So a good day was had on the conversion front. After I found that I'd
>  left the battery connection off the starter (d-oh!), I connected that
>  and got the engine to spin! But...... no familiar fuel pump sound like
>  it used to do with the old engine. On the old setup, key turned to
>  "ign. on" and "bzzzztt" continuously.
>
>  On the new setup, at first there was no FP sound, but then I realized
>  I had the ground signal from ECM going to the wrong pin. I corrected
>  this. Now when I turn the key to ign. (15) position, the FP sounds
>  like it spins for a second then stops.
>
>  A really short quiet "bzzt".
>
>  From what I've read, it seems that the fuel pump on a more modern
>  vehicle (unlike my *former* air cooled Westy --- ;^) may, or may not,
>  spin for a brief time before actually cranking the engine. When
>  cranking, the pump will pump and continue to do so if the engine runs.
>
>  Question:
>
>  is it "normal" for the FP to run for only 1 second with key in "ign."
>  (15) position?
>
>  I'm so used to hearing that continuous FP sound on my old setup.
>
>  Apologies, as I know this in the archives, I'm just trying to nail
>  down bugs before I fire it up. An informed list "yay" or "nay" would
>  help!
>
>  Thanks,
>
>  Neil.
>
>
>
>  --
>  Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"
>
>  http://web.mac.com/tubaneil
>  http://tubaneil.googlepages.com/
>
>

--
Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"

http://web.mac.com/tubaneil
http://tubaneil.googlepages.com/