Description & Operation

NOTE: This article also covers Digifant II system which is used on Golf, Golf GT and Jetta models.

The Bosch AFC Digifant system is a modified AFC system. The Digifant system does not use cold start injector and thermo time switch for cold start enrichment. Different sensors and switches along with Electronic Control Unit (ECU) regulate fuel injection operation. For further information on operation, see BOSCH AFC in the FUEL SYSTEMS section.