skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

ABOUT US
Intake manifold, air filter > < Replace fuel pressure regulating valveN276

Octavia Mk2

Testing the pressure of the high pressure pump
Testing the pressure of the high pressure pump
Special tools and workshop equipment required
t  Hand vacuum pump, e.g. -VAS 6213-
   
t  Make an -adapter- out of the high pressure line.
Test condition
l  The tests on the low-pressure side of the fuel line were carried out and no complaints arose.
l  The return flow quantity on the high pressure pump was checked and no complaints arose.
l  The fuel tank is filled with clean fuel according to the valid standards.
l  The starter is operated at a starter speed of ≥ 230 rpm.
Work procedure
  Note
t  Safety precautions when working on the fuel supply system → Chapter.
t  Observe rules for cleanliness → Chapter.
  N23-10482
–  Remove the fuel high pressure line -2- between the high pressure pump and the fuel distributor Pos. 11 → Chapter. 11 → Chapter.
  A23-10432
–  Connect the prepared, well cleaned adapter to the high pressure connection piece of the high pressure pump to 20 Nm.
–  Connect the hand vacuum pump -VAS 6213- with the prepared adapter.
–  Using the hand vacuum pump -VAS 6213-, generate a pressure of min. 1 bar.
If the high pressure pump is O.K, the pressure remains constant for more than 30 s.
If the high pressure pump is defective, the pressure drops again within 2 ... 3 s to 0 bar.
If necessary repeat the test, pay attention to the pressure loss on the hand vacuum pump -VAS 6213-.
–  Replace high pressure pump → Chapter.
  N23-10480

Intake manifold, air filter > < Replace fuel pressure regulating valveN276