Volkswagen Golf/Jetta 2 manual

General information and precautions
Fuel and exhaust systems - Digifant fuel injection / General information and precautions

General information
The Digifant fuel injection system is fitted to the 1.8 litre (codes PB and PF) engine and is a fully electronic and computerised version of the K-Jetronic system described in Part B of this Chapter.

The main components include a computerised control unit, electronic injectors and various sensors to monitor engine temperature and speed, induction air flow and throttle position. The control unit determines the opening period of the injectors and also continuously adjusts ignition timing according to engine speed, load and temperature.

Refer to Sections 1 and 2 in Part B of this Chapter whilst noting the following: a) Take extra care to prevent dust and dirt entering system components b) Do not use compressed air or fluffy cloths for cleaning
c) Switch off the ignition before disconnecting any component wiring or when washing the engine
d) Boost-charging the battery is only permissible for one minute at 16.5 volts maximum
e) Disconnect both battery leads before carrying out any electric welding

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