Not sure how much this will help but I will throw this out there.

On my 84, it is always a single cycle. I recently had some problems with my 84 where going down the road after driving for a while, it would cut out.� I of course ignored this until it finally stopped running.� But when it did stop running and would not start, I noticed that the pump cycled twice everytime I turned the key on.

My problem ended up being a weak connection at the AFM.� I cleaned it and since have had no cut out problems.� AND...my pump only cycles once again.� It was odd.� My Van completely cut off twice and would not start when I had the connection problem.� Both times I had the symptom that the pump would cycle twice when the key was turned on.

Not sure if this helps...

Z

________________________________
From: Jeff Lincoln <magikvw@GMAIL.COM>
To: vanagon@GERRY.VANAGON.COM
Sent: Wednesday, June 3, 2009 7:21:52 AM
Subject: Re: Why does the fuel pump cycle twice?

Just an observation but it seems that Robert has a legitimate question and
his post has sort of been hi-jacked. I'm curious to se what others say about
his pre-start double cycling of his fuel pump.

--
Thanks,

Jeff
'90 Carat (Grover)
'86 (We call this one Parts)
'78 Bus (Melissa) Patty's Bus