Edition 11.98
S00.5109.51.20
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OCTAVIA Service
Contents
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
- Interrogating and erasing fault memory.................................................................................... 01-4
- Fault table ................................................................................................................................. 01-6
- Final control diagnosis .............................................................................................................. 01-12
- Reading measured value block and basic setting .................................................................... 01-16
- Lists of display groups .............................................................................................................. 01-16
24 Fuel Preparation/Fuel Injection Page
Servicing fuel injection system .................................................................................................. 24-1
- List of fitting locations ............................................................................................................... 24-1
- Servicing fuel injection part ...................................................................................................... 24-3
- Disassembling and assembling fuel rail and injectors ............................................................. 24-6
- Disassembling and assembling intake manifold ...................................................................... 24-6
- Disassembling and assembling air filter ................................................................................... 24-7
- Safety precautions .................................................................................................................... 24-9
- Rules for cleanliness ................................................................................................................ 24-9
- Technical data .......................................................................................................................... 24-10
- Performing basic setting ........................................................................................................... 24-10
- Testing lambda probe and lambda control ............................................................................... 24-12
- Testing lambda probe heater .................................................................................................... 24-13
- Testing lambda probe signal wire and actuation ...................................................................... 24-14
- Testing operating states of engine............................................................................................ 24-16
- Testing throttle valve control unit .............................................................................................. 24-18
- Testing intake manifold pressure sender ................................................................................. 24-26
- Testing vehicle speed signal ..................................................................................................... 24-29
- Testing altitude sender ............................................................................................................. 24-31
- Testing intake air temperature sender ...................................................................................... 24-34
- Testing voltage supply for control unit ...................................................................................... 24-38
- Adapting engine electronics control unit to electronic immobiliser ........................................... 24-40
- Testing injectors........................................................................................................................ 24-41
- Testing fuel pressure regulator and holding pressure .............................................................. 24-44
- Testing intake system for leaks (unmetered air) ...................................................................... 24-46
- Testing intake air preheater ...................................................................................................... 24-48
- Testing activated charcoal filter solenoid valve (N80) .............................................................. 24-49
- Testing fuel pump relay and actuation ...................................................................................... 24-52
- Replacing engine control unit ................................................................................................... 24-55
28 Ignition System Page
Servicing ignition system ........................................................................................................... 28-1
- Summary of components of ignition part .................................................................................. 28-1
- Disassembling and assembling distributor ............................................................................... 28-2
- Safety precautions .................................................................................................................... 28-3
- Setting data, spark plugs .......................................................................................................... 28-3
- Testing and setting ignition timing ............................................................................................ 28-4
- Testing Hall sender ................................................................................................................... 28-5
- Testing ignition transformer ...................................................................................................... 28-7
- Testing output stage for ignition transformer ............................................................................ 28-7
- Testing knock sensor................................................................................................................ 28-9
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