I keep running into mentions of upgrade chips for the Digifant injection  but never Digijet.  Anyone know of one?

If not, what would it take to convert a 1.9l to Digifant?  I think the injectors are the same.  I assume it would involve replacing the ECU, AFM, and the wiring harness for the ECU.  What about the distributor?  Does the Digifant control the ignition too?

I guess the next question is: would the chip upgrade do anything useful on a 1.9 upgraded this way?

Bill