Date:         Tue, 20 Jun 2000 16:00:46 -0400
Reply-To:     "Carrington, Tom" <TCarrington@ReliTech.com>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Carrington, Tom" <TCarrington@ReliTech.com>
Subject:      FW: Euro-Drive: 90 Volkswagen Vanagon, Poor-idle/Hesitation
Content-Type: text/plain; charset="iso-8859-1"

-----Original Message-----
From: Roland Kloyber [mailto:rkloyber@vancouver.crosswinds.net]
Sent: Tuesday, June 20, 2000 2:34 PM
To: VANAGON@GERRY.VANAGON.COM
Subject: Euro-Drive: 90 Volkswagen Vanagon, Poor-idle/Hesitation


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1990 Volkswagen Vanagon 2.1 L

Trans:         Automatic
Mileage:       65,000 miles
VIN:           WV2ZBO255LGO33745
Fuel:          digfant
Emissions:     canadian

Misc Data:     Westy
Symptoms:      Poor Idle Quality, Hesitation, Cuts out, Stall
Occurs:        Hot, Under load, Idle

____________________________________________________________

Set up all the gear fuel gauge, volt meter to O2, Fluke to
distibutor watch wave pattern, do voltage drops on ground
to ECM and check power to ECM run extra ground from block
back to battery,replace CTS and harness. Run engine from
cold just befor full temp the problem occurs (the customer
says it is very random hot cold and then will not show up
for days) It idles a little rougher crack the throttle and
nothing crack it more and a good healthy back fire though
the intake the volt meter conferms this on the O2 but fuel
pressure is steady wave pattern on distributor solid. Have
replaced ECM, air flow meter,Idle stab motor, coil
,distibutor Idle stab relay from a good running vehicle no
change. Have checked fuel filter again and remove injectors
and checked injector screens. I think I will try the buffer
harness for the air flow meter in Mitchelle on Demand
suggested for Hwy surging any other ideas?


Roland Kloyber
rkloyber@vancouver.crosswinds.net
Technician
Fenders
North Vancouver, British Columbia, Canada


___________________ TEST AND REPAIR DATA ___________________

Checked for codes and none were found.

TESTING AND RESULTS

fuel pressure - 32-35psi

RELATED REPAIR HISTORY

Comes in loss of power, poor idle, proceed with full
tune-up comes back still the same, test drive 5 different
times,car runs great, clean grounds on block and grounds my
coil also replace with new ground from block to body,
suggest fuel purge it was done test drive drives excellent.
Customer takes car 5 min. comes back still same, I go with
the customer he applies 1/4 to 1/2 throttle the big goose
egg. Then power comes on and goes off but the Tach stays
steady

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