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Computer that controls the engine's functions, such as fuel injection and ignition timing

A form of fuel injection found on VW Vanagon / Transporters from 1983.5 to 1985. characterized by a digital 'map' of the 'proper' fuel quantity vs engine rpm and temperature.

Air Flow Meter. the silver box next to the air cleaner box on the fuel injection model buses . it measured the volume of air entering the intake system, and allowed the computer to adjust the amount of gasoline required.

Volkswagen’s electronic fuel-injection and engine-management system used in North American Vanagons from 1986 onward according to Gerry’s terminology FAQ. The archived FAQ distinguishes it from Digijet, which it associates with 1983.5–1985 Vanagons; Gerry’s technical bulletin index also lists Digifant topics for 1986–1991 models. Verify year, engine, and market before using system-specific parts or procedures.

The electronic control unit (ECU) is part of Volkswagen’s Digifant fuel-injection and engine-management system. Gerry’s 1986–1991 technical bulletin index distinguishes these applications from the earlier Digijet years. In a January 1999 list thread, an owner of a 1986 Westfalia reported that the engine quit after cooling-system bleeding and asked whether fuel starvation or a failed Digifant component was involved; the thread records a troubleshooting question, not a confirmed diagnosis. Check engine code and market before identifying an ECU.