Mine has a knock sensor.  It's NOT a WBX .  The
Ems came mostly from a 92 Cabriolet.
I had the option to try to install the stuff from that ABA motor I have
($300  complete!) but I could see no reason to do that, and judging from
the problems others have struggled with when doing that, I'm glad I didn't
waste all that time....Theirs seem to work just like mine does, except mine
swapped in in one day, and drove away the next.
  It *could* be the inline works better....grin...I know I can certainly
tell the sound of a WBX motor

There are probably millions of older Vw inline cars and hundreds of
Vanagons running just fine on the Digifant system.
On Feb 2, 2015 2:08 PM, "mark drillock" <mdrillock@cox.net> wrote:

> Baloney. There is very little difference between the 2 systems compared
> to all they have in common. I guess black is darker than navy blue but
> not by much. One Digifant van breaks your heart and now they are all #@&**.
>
> Lots of other vehicles have a very similar separate ICU driving a very
> similar idle control valve. Volvo, Mercedes, BMW to name a few and none
> of those engines are WBX limped into the future. It is true that the
> ICUs fail though the later Vanagon version much less so. I know I
> replaced several in my families BMW cars over the years.
>
> Mark
>
> Stuart MacMillan wrote:
>
>>
>>
>> The Digifant system is just an overly complicated attempt at keeping an
>> obsolete and inefficient engine in production for too long.
>>
>> Stuart
>>
>>
>>