Motronic injection and ignition system

Chapter overview

• Self-diagnosis
  1
• 1 Self diagnosis
  1
• 1.1 Self diagnosis
  1
• 1.2 Function
  1
• 1.3 Technical data of self diagnosis
  1
• 1.4 Connecting fault reader V.A.G 1551 and selecting engine electronics control unit
  2
• 1.5 Coding control unit
  4
• 1.6 Interrogating and erasing fault memory
  5
• 1.7 Fault table
  6
• 1.8 Final control diagnosis
  15
• 1.9 Read measured value block
  22
• 1.10 Display group overview
  22
• Mixture preparation, Injection
  24
• 1 Motronic injection and ignition system
  24
• 1.1 Motronic injection and ignition system
  24
• 1.2 Fitting locations overview
  24
• 1.3 Servicing injection part
  27
• 1.5 Dismantling and assembling intake manifold and intake manifold lower part
  34
• 1.6 Removing and installing throttle valve control part
  40
• 1.7 Removing and installing air cleaner, air mass meter and crankcase breather heater element
  45
• 1.8 Safety precautions
  48
• 1.9 Rules for cleanliness
  49
• 1.10 Technical data
  49
• 1.11 Idling check
  49
• 1.12 Performing basic setting
  51
• 1.13 Checking Lambda probe and Lambda control
  52
• 1.14 Checking Lambda probe heating
  55
• 1.15 Checking engine operating mode
  57
• 1.16 Checking air mass meter
  58
• 1.17 Checking throttle valve control part
  62
• 1.18 Checking coolant temperature sender
  69
• 1.19 Checking intake manifold temperature sender
  71
• 1.20 Checking engine speed sender
  74
• 1.21 Checking speed signal
  76
• 1.22 Checking control unit voltage supply
  78
• 1.23 Matching engine electronic control unit to electronic immobilizer
  80
• 1.24 Checking air conditioner and air conditioner compressor signals
  81
• 1.25 Removing and installing injectors
  82
• 1.26 Checking injectors
  84
• 1.27 Checking fuel pressure regulator and holding pressure
  86
• 1.28 Checking intake air system for leaks (unmetered air)
  88
• Ignition system
  90
• 1 Motronic injection and ignition system
  90
• 1.1 Motronic injection and ignition system
  90
• 1.2 Servicing ignition part
  90
• 1.3 Safety precautions
  95
• 1.4 Test data, spark plugs
  96
• 1.5 Checking Hall sender
  96
• 1.6 Checking knock sensors
  98
• 1.7 Checking ignition transformer
  100