Motronic injection and ignition system (4-Cyl.)

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
  3
• 2 Fault memory
  5
• 2.1 Fault memory
  5
• 2.2 Interrogating and erasing fault memory
  5
• 3 Fault table, fault codes 00515...01262
  7
• 3.1 Fault table, fault codes 00515...01262
  7
• 4 Fault table, fault codes 16486...18034
  13
• 4.1 Fault table, fault codes 16486...18034
  13
• 5 Final control diagnosis
  23
• 5.1 Final control diagnosis
  23
• 5.2 Performing final control diagnosis
  23
• 6 Measured value blocks
  31
• 6.1 Measured value blocks
  31
• 6.2 Safety precautions
  31
• 6.3 Read measured value block
  31
• 7 Evaluating measured value blocks, display groups 0...13
  32
• 7.1 Evaluating measured value blocks, display groups 0...13
  32
• 8 Evaluating measured value blocks, display groups 14...99
  43
• 8.1 Evaluating measured value blocks, display groups 14...99
  43
• Mixture preparation, Injection
  48
• 1 Servicing injection system
  48
• 1.1 Servicing injection system
  48
• 1.2 Fitting locations overview
  48
• 1.3 General notes on injection
  51
• 1.4 Removing and installing parts of the injection system
  52
• 1.5 Dismantling and assembling air cleaner
  59
• 1.6 Dismantling and assembling fuel rail with injectors
  60
• 1.7 Safety precautions
  62
• 1.8 Rules for cleanliness
  63
• 1.9 Technical data
  63
• 2 Checking components
  64
• 2.1 Checking components
  64
• 2.2 Checking Lambda probe heating
  64
• 2.3 Checking air mass meter
  66
• 2.4 Checking throttle valve control part
  68
• 2.5 Checking coolant temperature sender
  75
• 2.6 Checking intake air temperature sender
  79
• 2.7 Checking engine speed sender
  82
• 2.8 Testing altitude sender
  83
• 2.9 Checking injectors
  85
• 2.10 Checking fuel pressure regulator and holding pressure
  91
• 2.11 Checking intake air system for leaks (unmetered air)
  94
• 3 Checking functions
  95
• 3.1 Checking functions
  95
• 3.2 Idling check
  95
• 3.3 Adapting idling speed
  97
• 3.4 Checking Lambda control
  98
• 3.5 Checking engine operating mode
  101
• 3.6 Checking driving characteristics after a cold start
  103
• 4 Engine control unit
  104
• 4.1 Engine control unit
  104
• 4.2 Checking control unit voltage supply
  104
• 4.3 Procedure after voltage supply open circuit
  106
• 4.4 Replacing engine control unit
  106
• 4.5 Coding engine control unit
  107
• 4.6 Coding variations of engine control unit
  108
• 4.7 Matching engine control unit to throttle valve control part
  108
• 4.8 Matching engine control unit to electronic immobilizer
  110
• 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 ignition retardation during gear selection
  114
• 5.5 Checking driving range signal
  115
• Ignition system
  117
• 1 Servicing ignition system
  117
• 1.1 Servicing ignition system
  117
• 1.2 General notes to ignition system
  117
• 1.3 Removing and installing parts of the ignition system
  118
• 1.4 Safety precautions
  121
• 1.5 Test data, spark plugs
  121
• 1.6 Checking Hall sender
  121
• 1.7 Checking ignition coils with output stage
  123
• 1.8 Checking knock sensor
  127