Van Cafe says the Jetta unit has been used by them for a very long
time, seems to work just fine. Currently out of stock. Here's a link to
a picture. It shows two pins. VW PN 035.133.455F
http://www.van-cafe.com/home/van/image.html?myid=436&artist=Idle%20Control%20Valve

John

John Rodgers
Clayartist and Moldmaker
88'GL VW Bus Driver
Chelsea, AL
Http://www.moldhaus.com

On 2/24/2011 7:20 PM, Old Volks Home wrote:
> Yep they "look" alike, but there is one BIG difference......
>
> The Jetta Digifant II ISV uses a 034 133 455, which has a 3 terminal
> connection on the end.  It does NOT interchange with a Vanagon.  It
> does fit a wide variety of vehicles though besides the VW Jetta, such
> as the 85-89 Golf II,  85-87 Audi 4000, 85-86 Audi 5000, various
> 1995-2005 Hyundai models (Accent, Elantra, Tiburon), 95-96 KIA
> Sportage, 90-93 Saab 9000 and several more makes.  Bosch 0280 140 505
> (Siemens/VDO does not make).
>
> The Vanagon ISV uses a 025 906 457 A, has a 2 terminal connection on
> the end. Siemens/VDO 408202008003Z (Bosch does not make).
>
> I find that a lot of online places lump their ISV's together without
> really knowing the differences, many of them just assume they are the
> same.  I thought that too about 14 years ago, but found out the hard
> way ($$$) they weren't.  VW probably intentionally did it that way to
> prevent installing the wrong one on a vehicle, probably because of
> calibration issues.
>
> I'm pretty sure the Control Boxes are just as different.
>
> In your case Don, you were lucky to get one that had the proper
> connection end from whomever that online dealer was.