Skoda FABIA 2000 Workshop Manual page 94

20
–
Connect the pressure gauge -V.A.G 1318- with adapt-
er -V.A.G 1318/11- and -V.A.G 1318/17- to the fuel
feed line, the shut-off cock on the measuring device
must be in position -A-.
–
Start engine.
Nominal value 3 bar (0.3 MPa).
If the nominal value is higher than 3 bar (0.3 MPa):
–
Check fuel return-flow line between the fuel filter and
the fuel delivery unit for continuity, or replace fuel
pressure regulator.
If the nominal value is lower than 3 bar (0.3 MPa):
–
Check tightness of lines and fuel rail.
–
Connect the pressure gauge -V.A.G 1318- with adapt-
er -V.A.G 1318/11- and -V.A.G 1318/17- to the black
feed line for the fuel filter pump (old version filter
shown with integrated fuel pressure regulator). For the
new version of the filter with disassembled fuel pres-
sure regulator the black feed line is connected to the
fuel filter border connection.
–
Open shut-off cock on the measuring device -position
A-.
–
Start engine.
Specified value 3 bar (0.3 MPa) and higher.
If the specified value is not reached:
–
Close shut-off cock -position B-.
Control the fuel delivery unit with the remote control
-V.A.G 1348/3A-.
–
Connect remote control -V.A.G 1348/3A- ⇒ 20-1
page 7.
–
Activate remote control until the pressure is min. 3 bar
(0.3 MPa).
Also perform fuel delivery unit test with the final control di-
agnosis.
–
Connect vehicle system tester -V.A.G 1552-, switch
on ignition and select address word 01 - Engine Elec-
tronics ⇒ 1.4/55; 1.4/74 - Engine - Fuel Injection;
Rep. Gr. 01.
–
Select function 03 „Final control diagnosis" and con-
firm entry with .
Q
–
→
Using key select the final control diagnosis for fuel
pump relay.
–
The fuel pump will run for approx. 20 seconds or until
key → is activated.
–
End final control diagnosis for fuel pump relay after
reaching minimum value 3 bar (0.3 MPa).
–
Proceed with the final control diagnosis up to the end.
–
Select function 06 „End output" and switch off ignition.
20-1 12
page
FABIA 2000
Removing and installing parts of the fuel supply system
1.4/55; 1.4/74 Engine - Mechanical Components
B
V.A.G 1318
V.A.G 1318/17
V.A.G 1318/11
V.A.G 1318
Actuator diagnosis
Fuel pump relay-J17
V.A.G 1318/11
V.A.G 1318/17
A
S20-0106
A
B
S20-0105
→
Edition 05.05
S00.5306.06.20