volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Checking non-return valve for fuel pump > < Checking fuel delivery rate
Checking current draw
Checking current draw
–  Remove rear seat bench.
–  Remove cover from fuel delivery unit.
   
–  Connect multimeter -V.A.G 1715- to contact 1 -arrow- of 5-pin connector using pick-up clamp.
–  Start engine and run at idling speed.
–  Measure current draw of fuel pump. Specification: max. 9 amps.
  Note
If the fuel system malfunction is intermittent, you can perform the check during a road test, but a 2nd person is necessary.
If the current draw is exceeded:
–  Fuel pump defective, renew fuel delivery unit → Chapter.
  N20-10046

Checking non-return valve for fuel pump > < Checking fuel delivery rate