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Removing and installing parts of the fuel supply - Part 2 > < Inspecting proper operation and power supply

Fabia Mk1

Check fuel flow rate
Check fuel flow rate
Test conditions
l  Supply voltage o.k.
l  Battery voltage at least 11.5 V.
l  Fuel temperature 15...30°C.
l  Fuel tank at least 1/4 full.
Test sequence
–  Unscrew the cap from the filler neck.
–  Remove the cover from the fuel delivery unit.
–  Unplug the 4-pin plug from the fuel delivery unit.
   
–  Connect remote control -V.A.G 1348/3A- with connection lines from the measuring tool set to contact -1- of the fuel delivery unit and to battery +.
–  Use the connection lines from the measuring tool set to connect the contacts -4- to the plug and to the fuel delivery unit.
–  Pull off the fuel feed line and gather residual fuel in a cloth.
  WARNING
The fuel feed line is pressurized! Place a clean cleaning cloth around the connection point before detaching hose connections. Reduce pressure by carefully releasing the connection point.
–  Connect adapter -V.A.G 1318/17- and -V.A.G 1318/16- to the fuel delivery unit and hold in the measuring vessel.
–  Activate remote control -V.A.G 1348/3A- for 30 seconds.
  S20-0279
–  Compare the amount of the fuel pumped to the specified value (the amount of the fuel pumped is dependent on the voltage at the fuel delivery unit).
If the minimum flow rate is not reached:
–  Remove the fuel delivery unit and check whether the pump strainer is not clogged up.
If no fault was detected until now:
–  Replace fuel delivery unit.
  S20-0278

Removing and installing parts of the fuel supply - Part 2 > < Inspecting proper operation and power supply