Motronic injection and ignition system (2.0 ltr. engine)

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 Significance of the exhaust gas warning lamp
  2
• 1.5 Significance of EPC warning lamp (fault lamp for electronic accelerator) in dash panel insert
  3
• 1.6 Connecting fault reader
  4
• 2 Fault memory
  7
• 2.1 Fault memory
  7
• 2.2 Automatic test sequence for interrogating all fault memories
  7
• 2.3 Interrogating and erasing engine control unit fault memory
  8
• 3 Fault table: SAE P0 and P2 codes
  9
• 3.1 Fault table: SAE P0 and P2 codes
  9
• 4 Fault table: SAE P1 and P3 codes
  15
• 4.1 Fault table: SAE P1 and P3 codes
  15
• 5 Final control diagnosis
  21
• 5.1 Final control diagnosis
  21
• 5.2 Performing final control diagnosis
  21
• 6 Readiness code
  30
• 6.1 Readiness code
  30
• 6.2 Reading readiness code
  30
• 7 Measured value blocks
  31
• 7.1 Measured value blocks
  31
• 7.2 Safety precautions
  31
• 7.3 Read measured value block
  31
• 8 Evaluating measured value blocks, display groups 0...9 -Basic functions-
  32
• 8.1 Evaluating measured value blocks, display groups 0...9 -Basic functions-
  32
• 9 Evaluating measured value blocks, display groups 10...29 -Ignition-
  36
• 9.1 Evaluating measured value blocks, display groups 10...29 -Ignition-
  36
• 11 Evaluating measured value blocks, display groups 50...69 -Speed regulation-
  44
• 11.1 Evaluating measured value blocks, display groups 50...69 -Speed regulation-
  44
• 12 Evaluating measured value blocks, display groups 70...89 -Reducing emissions-
  48
• 12.1 Evaluating measured value blocks, display groups 70...89 -Reducing emissions-
  48
• 13 Evaluating measured value blocks, display groups 120...129 -Communication-
  48
• 13.1 Evaluating measured value blocks, display groups 120...129 -Communication-
  48
• Mixture preparation, Injection
  50
• 1 Servicing injection system
  50
• 1.1 Servicing injection system
  50
• 1.2 Fitting locations overview
  50
• 1.3 General notes on injection
  58
• 1.4 Dismantling and assembling intake manifold - Upper part
  59
• 1.5 Dismantling and assembling intake manifold - lower part
  61
• 1.6 Dismantling and assembling air cleaner
  63
• 1.7 Safety precautions
  64
• 1.8 Rules for cleanliness
  66
• 1.9 Technical data
  66
• 2 Checking components
  66
• 2.1 Checking components
  66
• 2.2 Checking Lambda probe heating for Lambda probe before catalyst
  66
• 2.3 Checking Lambda probe heating for Lambda probe after catalyst
  70
• 2.4 Checking air mass meter
  73
• 2.5 Checking throttle valve control part
  76
• 2.6 Checking coolant temperature sender
  79
• 2.7 Checking intake air temperature sender
  84
• 2.8 Checking engine speed sender
  88
• 2.9 Checking injectors
  90
• 2.10 Checking fuel pressure regulator and holding pressure
  96
• 2.11 Checking intake air system for leaks (unmetered air)
  99
• 3 Checking functions
  100
• 3.1 Checking functions
  100
• 3.2 Idling check
  100
• 3.3 Checking Lambda probe and Lambda regulation before catalyst
  101
• 3.4 Checking Lambda probe and Lambda regulation after catalyst
  105
• 3.5 Checking Lambda probe ageing, Lambda probe before catalyst
  108
• 3.6 Checking engine operating mode
  109
• 4 Engine control unit
  110
• 4.1 Engine control unit
  110
• 4.2 Checking control unit voltage supply
  110
• 4.3 Replacing engine control unit
  112
• 4.4 Adapting engine control unit to throttle valve control part
  114
• 4.5 Checking matching resistor for data bus
  115
• 5 Checking additional signals
  116
• 5.1 Checking additional signals
  116
• 5.2 Checking speed signal
  116
• 5.3 Checking signal from/to air conditioning system
  118
• 5.4 Checking signal from clutch pedal switch
  119
• 5.5 Checking signal from brake light switch and brake pedal switch
  120
• Ignition system
  122
• 1 Servicing ignition system
  122
• 1.1 Servicing ignition system
  122
• 1.2 General notes on ignition system
  122
• 1.3 Removing and installing parts of the ignition system
  123
• 1.4 Safety precautions
  126
• 1.5 Test data, spark plugs
  127
• 1.6 Checking Hall sender
  128
• 1.7 Checking ignition transformer
  129
• 1.8 Checking knock sensor
  132
• 1.9 Check misfiring recognition
  135