I believe the '91s got Digifant I in California and Digifant II
elsewhere. Prior to Digifant, the 8V engines had CIS-e (= K-Jetronik)
and before that just CIS (=Jetronik).

dave wrote:
>
> I just saw a California 1991 8V gas model for the first time here in Chicago.
> Totally odd stuff on the engine, at least to me:
> Different fuel injector wiring, with maybe individual wiring for each injector.
>
> Different throttle body switches and two stop screws for the levers.
> Engine check light. I wonder if I can hook the vag-com tool up to the ECM?
>
> But same wiring issues that the 91s are known for, ground wiring breaking at
> coolant flange, wiring breaking at throttle switches.
>
> BTW it was failing the Indiana Emissions test due to the broken ground wire.
> later,
> dave
> Reminder........
> Before you criticize someone, you should walk a mile in their shoes. That way,
> when you criticize them, you are a mile away from them, and you have their
> shoes. Frieda Norris