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General notes on the ignition system > < Safety measures to apply when working on the fuel injection and ignition system

Octavia Mk2

General notes on the injection system
General notes on the injection system
Repairing ignition → Chapter.
t  The engine control unit is equipped with self-diagnosis. Before repairs and also for fault finding, first of all interrogate the fault memory. Also check the vacuum hoses and connections (unmetered air).
t  Fuel hoses in the engine compartment must only be secured with spring-type clips → electronic catalogue of original parts. The use of clamp-type or screw-type clips is not allowed.
t  A minimum voltage of 11.5 V is required for perfect functioning of the electrical components.
t  Do not use sealants containing silicone. Traces of silicone elements drawn in by the engine are not burnt in the engine and damage the lambda probe.
t  If after fault finding, repair or inspection of components the engine starts briefly and then stops, it is possible that the immobiliser blocks the engine control unit. Then if necessary the control unit must be adapted → Vehicle diagnosis, testing and information system VAS 5051.
t  When opening the driver door the fuel pump is activated for 2 seconds in order to build up the pressure in the fuel system.
t  Certain inspections may cause the control unit to detect and store a fault. It is therefore necessary to interrogate the fault memory after having completed all inspections and repairs, and if necessary delete → Vehicle diagnosis, testing and information system VAS 5051.
Safety measures → Chapter.
   

General notes on the ignition system > < Safety measures to apply when working on the fuel injection and ignition system