yahi wrote:
>
> Hi Darryl,
>         Have you considered the possibility of a intermittently malfunctioning
> Temp II Sensor. I had similar symptoms to those you describe a year ago.
> Although I had suspected a bum sensor, it checked out per Bentley. It was
> only through the use of Darrell's Digifant Tool which allows for analysis
> under load i.e. 30 miles down the road that the sensor revealed itself. It
> did what it was supposed to cold but failed at driving temp. Try
> disconnecting the sensor next time you stall and see if that makes a
> difference or simply replace the sensor (simple and inexpensive). Regards.
>
> Thom
> '87 Syncro Westy
>
> ----------
> > From: Darryl Evey (by way of Derek Drew <drew@interport.net>)
> <desertauto@AOL.COM>
> > To: vanagon@GERRY.VANAGON.COM
> > Subject: Euro-Drive: UPDATE 87 Volkswagen Vanagon, dies
> > Date: Monday, February 21, 2000 2:34 PM
> >
> > iATN Help:      send blank email to: help@i-atn.com
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> > _______________________________________________________
> >
> > 1987 Volkswagen Vanagon 2.1 L
> >
> > Trans:         Standard
> > Mileage:       150,000 mi
> > VIN:           WV2YB0257HH073807
> > Fuel:          EFI
> > Ignition:      Hall Unit
> > Emissions:     Ca Emissions
> >
> > Symptoms:      dies
> > Occurs:        After 30 miles
> >
> > _________________________ UPDATE: __________________________
> >
> > Thanks for all the help so far.
> >
> > Many techs suggested the ECU. Since there is no way to test
> > it, and everything else tested good, I replaced it. No
> > difference. I am still getting 30 miles and then problems.
> >
> > Others suggested the AFM and the updated harness. My
> > understanding is the harness is supposed to help with
> > bucking or surging. That is not the problem so I am leary
> > to spend $150 on an unnecessary part. I took apart the AFM.
> > There was no corrosion. I cleaned it and resealed it. No
> > help there.
> >
> > I cleaned the grounds. I replaced the coil. Still no help.
> >
> > Any more suggestions????
> >
> > ____________________ ORIGINAL MESSAGE: _____________________
> >
> > This vehicle was towed in on Friday. These people are from
> > out of town and are stranded here.
> >
> > The vehicle lost power and then died. It was towed into my
> > shop. It fired up and ran great. The vacuum line to the
> > fuel pressure regulator was broken. I replaced the line and
> > checked the plugs. The were black velvetty and old so I
> > replaced them. I checked the air flow meter and the fuel
> > pump. The pump has 36 lbs without the regulator and my
> > gauge vibrates between 31 and 34 lbs with the regulator
> > hooked up. It smooths out at high rpms. The vacuum gauge
> > bounces between 8 and 12 at idle but smooths out at high
> > rpms.
> >
> > After 30 miles the vehicles starts to lose power and tries
> > to die. I feathered the throttle and it starts running good
> > for about 2 miles and then does it again. Feathering the
> > throttle makes it run good every time. I can let the
> > vehicle run in my shop for over an hour and it still runs
> > good. It is only after about 30 miles of freeway driving
> > the problem returns. The new plugs are black and velvetty
> > again.
> >
> > I took off the cat and it appears to be fine. When the
> > vehicle dies, I checked the fuel pressure and it was still
> > 32lbs. I changed the fuel pump, it is still dieing. These
> > people are frustrated and want there car done now.
> >
> > darryl
> >
> > Darryl Evey
> > desertauto@aol.com
> > Owner/Technician
> > Desert AutoHaus
> > Victorville, California, USA
> >
> > iATN Technician Sponsor
> > http://members.iatn.net/pages/darryl_evey.html
> >
> >
> >
> > ___________________ TEST AND REPAIR DATA ___________________
> >
> > MANIFOLD VACUUM READINGS
> >
> > Idle:   11 in.
> >
> > Checked for codes and none were found.
> >
> > TESTING AND RESULTS
> >
> > Fuel Pressure - 31-36 lbs
> >
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Darryl wrote

 The vacuum gauge
> > bounces between 8 and 12 at idle but smooths out at high
> > rpms.
this is low for manifold vacuum at idle you dont mention the compression
test but you said it ran great cold so try a compression test cold and
hot
 have the heads been replaced the low vacuum could be valve problems or
valves not closing hot I have seen the low manifold readings happen when
the hydraulic lifters over pumping after the engine warms up
Bob