Digifant Injection and Ignition system (2 valve)

Chapter overview

• Self diagnosis, Electrical check
  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 Interrogating and erasing fault memory
  3
• 1.6 Fault table
  4
• 1.7 Final control diagnosis
  6
• 2 Electrical check
  9
• 2.1 Electrical check
  9
• 2.2 Wiring and component check with test box V.A.G 1598/18
  9
• Mixture preparation, Injection
  14
• 1 Digifant injection and ignition system
  14
• 1.1 Digifant injection and ignition system
  14
• 1.2 Fitting locations overview
  14
• 1.3 Servicing injection part
  16
• 1.4 Safety precautions
  32
• 1.5 Rules for cleanliness
  33
• 1.6 Technical data
  33
• 1.7 Idling check
  33
• 1.8 Checking Lambda probe and Lambda control
  36
• 1.9 Checking acceleration/full throttle enrichment and overrun cut-off
  38
• 1.10 Checking engine operating mode
  39
• 1.11 Checking throttle valve potentiometer
  40
• 1.13 Checking coolant temperature sender
  42
• 1.14 Checking intake air temperature sender
  43
• 1.15 Checking air mass meter potentiometer
  45
• 1.16 Checking control unit voltage supply
  47
• 1.17 Checking fuel pressure regulator and holding pressure
  48
• 1.18 Checking cold start valve
  50
• 1.19 Removing and installing injectors
  52
• 1.20 Checking injectors
  53
• 1.21 Checking intake air system for leaks (unmetered air)
  55
• 1.22 Checking intake air preheating
  56
• 1.23 Basic throttle valve setting
  57
• 1.24 Vacuum hose connection diagram
  58
• Ignition system
  62
• 1 Digifant injection and ignition system
  62
• 1.1 Digifant injection and ignition system
  62
• 1.2 Servicing ignition part
  62
• 1.3 Safety precautions
  65
• 1.4 Test data, spark plugs
  66
• 1.5 Installing distributor
  66
• 1.6 Checking ignition timing control
  67
• 1.7 Checking Hall sender
  68
• 1.8 Checking ignition transformer
  69
• 1.9 Checking ignition transformer output stage
  70