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Test fuel pressure regulator and holding pressure > < Check tightness

Fabia Mk1

Test injected quantity and spray pattern
Test injected quantity and spray pattern
  Note
When testing the injection rate also check the jet formation. The jet must be the same for all valves.
–  Insert injector to be tested in a measuring glass.
   
–  Connect one contact of injector to engine earth.
–  Connect the second contact of the injector to the remote control.
–  Connect terminal to battery positive (+).
  S24-0579
–  Connect battery positive (+) and fuse socket No. 61 with adapter cable and adapter -V.A.G 1348/3-2-.
The fuel delivery unit must start running.
–  Operate remote control for 30 seconds.
–  Repeat test at the other injectors. Always use a new measuring glass.
–  Once all the injectors have been driven, position the graduated measuring glasses on an even base.
–  Switch off voltage supply of fuel delivery unit.
–  Compare the individual quantities of fuel injected.
Specified value: 88...98 ml per valve
If the measurement obtained for one or several injectors is below or above the specification:
–  Replace the faulty injector → Chapter.
The injectors are installed in the reverse order. Pay attention to the following:
t  Replace the O-rings and all the injectors and moisten lightly with clean engine oil.
t  Insert injectors vertically and into the correct position in the fuel rail and secure with retaining clips.
t  Fit fuel rail with secured injectors onto intake manifold and press down evenly.
  S01-0094

Test fuel pressure regulator and holding pressure > < Check tightness