Volkswagen Golf/Jetta 2 manual
General information and precautionsFuel 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.
Precautions
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
