Edition 07.99
S00.5126.50.20
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OCTAVIA Service
Contens
01 Self-diagnosis Page
Self-diagnosis .............................................................................................................................. 01-1
- Features of self-diagnosis ........................................................................................................ 01-1
- Technical data of self-diagnosis ............................................................................................... 01-1
- Connecting vehicle system tester V.A.G 1552 and selecting engine electronics control unit .. 01-2
- nterrogating and erasing fault memory.................................................................................... 01-4
- Fault table ................................................................................................................................. 01-6
- Final control diagnosis .............................................................................................................. 01-30
- Reading measured value block ................................................................................................ 01-32
- Reading measured value block: display groups 000 to 010 ..................................................... 01-33
- Reading measured value block: display groups 011 to 055 ..................................................... 01-37
2 Fuel Formation/Fuel Injection Page
Servicing Fuel Injection System ................................................................................................ 2 -1
- Safety precautions .................................................................................................................... 24-1
- Rules for cleanliness ................................................................................................................ 24-2
- Technical data .......................................................................................................................... 24-2
- Survey of fitting locations ......................................................................................................... 24-3
- General information on fuel injection system ........................................................................... 24-7
- Removing and installing parts of the fuel injection system ....................................................... 24-8
- Disassembling and assembling fuel rail and injectors ............................................................. 24-10
- Disassembling and assembling intake manifold ...................................................................... 24-10
- Disassembling and assembling air filter ................................................................................... 24-11
- Testing cables and components with test box V.A.G 1598/31 ................................................. 24-12
- Replacing engine control unit ................................................................................................... 24-14
- Testing idling speed .................................................................................................................. 24-15
- Testing operating states of engine............................................................................................ 24-17
- Testing fuel pressure regulator and holding pressure .............................................................. 24-19
- Testing intake system for leaks (unmetered air) ...................................................................... 24-22
- Testing injectors........................................................................................................................ 24-23
- Testing injected quantity, leaktightness and spray pattern of injectors ..................................... 24-25
- Testing fuel pump relay -J17 and actuation .............................................................................. 24-27
- Testing intake manifold pressure sender -G71 ........................................................................ 24-30
- Testing intake manifold temperature sender -G72 ................................................................... 24-31
- Testing coolant temperature sender -G62 ................................................................................ 24-34
- Testing voltage supply for control unit ...................................................................................... 24-38
- Adapting engine electronics control unit to electronic immobiliser ........................................... 24-39
Testing lambda control ............................................................................................................... 2 - 1
- Operation of lambda control ..................................................................................................... 24-41
- Testing lambda probe heater .................................................................................................... 24-47
Testing fuel tank ventilation ....................................................................................................... 2 - 9
- Testing solenoid valve 1 for activated charcoal filter ................................................................ 24-49
Testing electronic power control (electronic throttle) ............................................................. 2 -52
- Operation of electronic throttle system ..................................................................................... 24-52
- Meaning of EPC warning lamp (electronic throttle control fault lamp) in dash panel insert ..... 24-53
- Testing electronic throttle control fault lamp -K132 .................................................................. 24-54
- Testing throttle valve control unit -J338 .................................................................................... 24-56
- Conducting adaptation of throttle valve control unit ................................................................. 24-56
- Testing angle senders for throttle valve drive ........................................................................... 24-59
- Testing accelerator pedal position sender ................................................................................ 24-62
