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High-pressure pump: assembly overview > < Checking delivery rate

Leon Mk2

Checking current draw
Checking current draw
–  Remove the seat base → Bodywork, interior fitting work; Rep. Gr.72.
   
–  Remove the cover -1- of the fuel delivery unit together with the fuel pump control unit -J538--2-.
  N20-0603
–  Disconnect the 5-pin connector from the bracket for the fuel delivery unit -arrow-.
  A20-1067
–  Connect the adapter for the DSO measuring/oscilloscope module (5 contacts) -VAS 5565-to the connector in the fuel supply unit.
–  Connect the ammeter clip -A-to the red cable marked “Stromzange (ammeter clip)” on theDSO (5 contact) adapter for the measuring/oscilloscope module -VAS 5565-.
–  Start engine and run at idling speed.
–  Measure the power consumption of the fuel pump: Specification: 9 Amps maximum.
  Note
If there is a temporary fuel system fault, the check can also be carried out during a test drive, with the help of a second person.
If the current draw is exceeded:
–  Fuel pump is defective, renew fuel delivery unit → Chapter.
  N20-10424

High-pressure pump: assembly overview > < Checking delivery rate