4CV fuel injection and ignition system

Chapter overview

• Self-diagnosis
  1
• 1 General to self-diagnosis
  1
• 1.1 General to self-diagnosis
  1
• 1.2 Features of self-diagnosis
  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
• 2 Fault memory
  7
• 2.1 Fault memory
  7
• 2.2 Interrogating and erasing fault memory of engine control unit
  8
• 2.3 Automatic test sequence
  9
• 3 Fault table, fault codes 00263...00524
  10
• 3.1 Fault table, fault codes 00263...00524
  10
• 4 Fault table, fault codes 00525...17978
  15
• 4.1 Fault table, fault codes 00525...17978
  15
• 5 Final control diagnosis
  21
• 5.1 Final control diagnosis
  21
• 5.2 Performing final control diagnosis
  21
• 6 Measured value blocks
  27
• 6.1 Measured value blocks
  27
• 6.2 Safety precautions
  27
• 6.3 Read measured value block
  27
• 6.4 Evaluating measured value blocks
  29
• Mixture preparation, Injection
  38
• 1 Servicing injection system
  38
• 1.1 Servicing injection system
  38
• 1.2 Fitting locations overview
  38
• 1.3 General notes on injection
  41
• 1.4 Removing and installing parts of the injection system
  43
• 1.5 Dismantling and assembling intake manifold
  53
• 1.6 Dismantling and assembling fuel rail with injectors
  56
• 1.7 Dismantling and assembling air cleaner
  59
• 1.8 Safety precautions
  62
• 1.9 Rules for cleanliness
  63
• 1.10 Technical data
  64
• 2 Checking components
  64
• 2.1 Checking components
  64
• 2.2 Checking Lambda probe heating
  64
• 2.3 Checking throttle valve control part
  66
• 2.4 Checking intake manifold pressure sender
  74
• 2.5 Checking intake air temperature sender
  77
• 2.6 Checking coolant temperature sender
  81
• 2.7 Checking engine speed sender
  86
• 2.8 Checking injectors
  87
• 2.9 Checking fuel pressure regulator and holding pressure
  94
• 2.10 Checking intake air system for leaks (unmetered air)
  98
• 2.11 Checking intake air preheating
  99
• 3 Checking functions
  99
• 3.1 Checking functions
  99
• 3.2 Checking Lambda probe and Lambda control
  99
• 3.3 Checking engine operating mode
  102
• 4 Engine control unit
  104
• 4.1 Engine control unit
  104
• 4.2 Checking control unit voltage supply
  104
• 4.3 Replacing engine control unit
  106
• 4.4 Coding engine control unit
  107
• 4.5 Adapting engine control unit to throttle valve control part
  108
• 4.6 Adapting engine control unit to electronic immobilizer
  109
• 5 Checking additional signals
  111
• 5.1 Checking additional signals
  111
• 5.2 Checking speed signal
  111
• 5.3 Checking signal from/to air conditioning system
  112
• 5.4 Checking driving range signal
  114
• 5.5 Checking rpm signal
  115
• 5.6 Checking gearbox intervention signal when a gear is shifted
  115
• 5.7 Checking data bus
  117
• Ignition system
  119
• 1 Servicing ignition system
  119
• 1.1 Servicing ignition system
  119
• 1.2 General notes on ignition system
  119
• 1.3 Removing and installing parts of the ignition system
  120
• 1.4 Safety precautions
  122
• 1.5 Test data, spark plugs
  123
• 1.6 Checking Hall sender
  124
• 1.7 Checking ignition transformer
  125
• 1.8 Checking knock sensor
  129