I think the fuel injection is suspect.
It can be a PITA to diagnose and resolve.

Based on the numerous fuel injection problems
posted on this list and your description of the
problem I would break down the cause into probabilties:

The high probabilty stuff first:
* Worn out Air Flow Meter
* Temp II sender gone bad

Medium probability:
* Timing
* Idle stabilizer
* Vaccuum leak
* O2 sensor

Low probability stuff:
* ECU
* Fuel pump
* Fuel pressure regulator
* Throttle switch
* Collapsed catalytic
* Ground wires
* Hall sender
* Gummed up injector(s)

Most of this stuff can be tested with a voltage/ohmn meter and a
Bentley manual.

My guess: Temp II sender

Laurence Smith
Hamilton, ON
90 Westy (fanumbos)

> -----Original Message-----
> From: Vanagon Mailing List
> [mailto:vanagon@gerry.vanagon.com]On Behalf
> Of Andree Hurley
> Sent: Saturday, January 12, 2002 11:54 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Power loss still in '85
>
>
> The latest -
>
> I took the van first to a dealer service area where he told
> me the fuel
> injection system is such a problem that the Santa Monica
> dealer (where
> this guy used to work) charged a minimum of $500 to look at
> it, and maybe
> they did too (Van Nuys area). I went to a mechanic across
> the street who
> also thought it was the  fuel system, and said he would
> need it for two
> hours next week to trouble shoot it. The third shop I went
> to actually
> drove it, again said it was a fuel problem, mentioned the
> pump (which was
> replaced once before I got it) might be the problem as I changed the
> filter, and if not ther could be a problem anywhere from in
> the tank to
> the other end. He would need the car for two days. I looked
> into getting
> an O2 sensor and a new fuel pump but didn't buy either yet.
> This only
> happens after it has been running and is fully warmed up.
> Kind of reminds
> me of a vapor problem I had with my truck once, but....
>
> Andree
>
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