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Go Back   TDIClub Forums > VW TDI Discussion Areas > Alternative Diesel Fuels (Biodiesel, WVO, SVO, BTL, GTL etc)

Alternative Diesel Fuels (Biodiesel, WVO, SVO, BTL, GTL etc) Discussions about alternative fuels for use in our TDI's. This includes biodiesel WVO (Waste Vegetable Oil), SVO (Straight Vegetable Oil), BTL (Biomass to Liquid), GTL (Gas to Liquids) etc. Please note the Fuel Disclaimer.

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Old April 17th, 2017, 15:36   #1
ibalcom's Avatar
Join Date: May 2005
Location: North East Kingdom Vermont
Default Votech?

Is anyone familiar with votech systems?
I'm experiencing purging to the vo tank in both switch settings.
2000 Jetta 160K miles 5 speed TDIheater, Panzer skid plate, Audi TT busings, Bilstein Sports, Bosio Sprint 520 injectors, TDI Heater.
1991 Jetta Turbo Diesel - sold @ 276K
1980 Mercedes 207D
1955 Land Rover Series 1 86"
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Old April 18th, 2017, 05:30   #2
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Join Date: Oct 2004
Location: Connecticut
Fuel Economy: 53/43/49 ('02 Jetta 5 sp)

I'm familiar with WVO systems, but not "votech". Is that a brand?

I would have to suspect an electrical fault or a bad valve. More likely electrical.

Has any work been done to the system recently?

Last edited by philngrayce; April 18th, 2017 at 05:32.
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Old April 19th, 2017, 09:52   #3
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Join Date: Aug 2008
Location: Reno, sort of...

I haven't used my Greasecar setup in a long time, there are two possibilities for "constant purge" either there is an electrical/controller issue or the solenoid is stuck open. I suggest you power down both solenoids and see if you still have the purging; if so you know it is a solenoid/valve causing the problem.
2001 Jetta GL TDI, 35/15% Tint, Ventectomy, Catectomy, EGR-ectomy, Stage 4 TDTuning, PP764's, Stealth 17/56 Garrett, VCDS Hex+CAN, South Bend Daily Driver 2 Clutch, DG Short Shifter, Previous Diesel: 1983 Rabbit Diesel
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