you really want the 2.1 throttle body on the 2.1 plenum box with 2.1 intake
runners........
on the 2.1 engine......those are all bigger slightly on the 2.1
.........like the throttle plate diameter is larger ..........and the intake
runners.
Only one small mod is needed on the plenum box to connect the hose from the
aux. air regulator the 1.9 uses.

Unless you move those two large hoses on the firewall.........the main
coolant hoses on the right side of the engine compartment in the air box
area ........... ......
you need to use the 1.9 air intake boot, and 1.9 air box.  The 2.1 air box
interferes with those main coolant hoses, by quite a bit.  So I just keep
the 1.9 air intake boot and air box since they fit just like they should.

----- Original Message -----
From: "Brendan Slevin" <totorovan@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, April 10, 2009 11:27 AM
Subject: Re: 1.9 to 2.1 conversion question

Nice, this is kinda what I thought I'd do. Keep the digijet wiring and put
the digifant intake.   Did you use the 2.1 Tbody, too?  I'm trying to think
about what to do with the throttle switches if I use the 2.1 tbody.

brendan

On Fri, Apr 10, 2009 at 11:02 AM, Mike Collum <collum@myfairpoint.net>wrote:

> Brendan Slevin wrote:
>
>> I am wondering if I should use the 1.9 harness/FI system with the 2.1
>> intake
>> or gut the entire 1.9 harness/FI and install the 2.1 stuff.
>>
>
> I'm certainly not trying to say that my way is the right way ... just one
> of the choices.
>
> I installed the entire 2.1 intake system ... from snorkel in the D pillar
> to the intake runners and I plugged the Digifant AFM into the Digijet
> wiring
> harness.  It runs beautifully.
>
> I tend to think that the Digijet idle stabilization is less problematic
> and
> is for sure cheaper to replace.
>
> Just my 2� worth.
>
> Mike
>
>