Testing Fuel Pump - Skoda Octavia Workshop Manual

OCTAVIA
Edition 08.96
S00.5104.50.20
Fuel Supply System

Testing fuel pump

Special tools, testers and aids required
♦ Hand-held multimeter (e.g. V.A.G 1526)
♦ Wrench for union nut (e.g. MP 1-227)
♦ Adapter cable set (e.g. V.A.G 1594)
♦ Current flow diagram
Test conditions
l Holding pressure o.k.; testing:
⇒ 1.8 ltr./92 kW Engine, Motronic Fuel Injection
and Ignition System; Repair Group 24;
Testing fuel pressure regulator and holding
pressure
l Battery voltage at least 12 V
l Fuse 28 o.k.
l Fuse filter o.k.
Test procedure
- Switch on ignition.
The fuel pump should be heard to operate. (A
second mechanic may be required if there is a
high level of surrounding noise)
If the fuel pump does not run:
- Switch off ignition.
- Connect remote control V.A.G 1348/3A with
adapter cable V.A.G 1348/3-2 ⇒ page 20-8.
- Operate remote control.
If the fuel pump runs:
Test fuel pump relay:
⇒ 1.8 ltr./92 kW Engine, Motronic Fuel Injection
and Ignition System; Repair Group 24;
Servicing Motronic fuel injection system;
testing fuel pump relay and actuation
20
¡ ¢ £
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