Motronic inj. and ignition system (2-valve, roller rocker finger)

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 EPC warning lamp (fault lamp for electronic accelerator) in dash panel insert
  2
• 1.5 Significance of exhaust emissions warning lamp
  3
• 1.6 Connecting fault reader
  4
• 2 Fault memory
  7
• 2.1 Fault memory
  7
• 2.2 Interrogating and erasing fault memory of engine control unit
  7
• 2.3 Automatic test sequence
  8
• 3 Fault table: SAE P0 codes
  9
• 3.1 Fault table: SAE P0 codes
  9
• 4 Fault table: SAE P1 codes
  13
• 4.1 Fault table: SAE P1 codes
  13
• 5 Final control diagnosis
  19
• 5.1 Final control diagnosis
  19
• 5.2 Performing final control diagnosis
  19
• 6 Readiness code
  22
• 6.1 Readiness code
  22
• 6.2 Function
  22
• 6.3 Reading readiness code
  22
• 6.4 Generating readiness code
  23
• 7 Measured value blocks
  29
• 7.1 Measured value blocks
  29
• 7.2 Safety precautions
  29
• 7.3 Read measured value block
  29
• 8 Evaluating measured value blocks, display groups 0...9 -Basic functions-
  31
• 8.1 Evaluating measured value blocks, display groups 0...9 -Basic functions-
  31
• 9 Evaluating measured value blocks, display groups 10...29 -Ignition-
  34
• 9.1 Evaluating measured value blocks, display groups 10...29 -Ignition-
  34
• 10 Evaluating measured value blocks, display grps 30...49, 99 -Lambda regulation-
  38
• 10.1 Evaluating measured value blocks, display grps 30...49, 99 -Lambda regulation-
  38
• 11 Evaluating measured value blocks, display groups 50...69 -Speed regulation-
  43
• 11.1 Evaluating measured value blocks, display groups 50...69 -Speed regulation-
  43
• 12 Evaluating measured value blocks, display groups 70...79 -Reducing emissions-
  46
• 12.1 Evaluating measured value blocks, display groups 70...79 -Reducing emissions-
  46
• 13 Evaluating measured value blocks, display group 100 -Readiness code-
  47
• 13.1 Evaluating measured value blocks, display group 100 -Readiness code-
  47
• 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
  52
• 1.4 Removing and installing parts of the injection system
  53
• 1.5 Dismantling and assembling intake manifold
  62
• 1.6 Dismantling and assembling fuel rail with injectors
  65
• 1.7 Dismantling and assembling air cleaner
  68
• 1.8 Safety precautions
  72
• 1.9 Rules for cleanliness
  73
• 1.10 Technical data
  73
• 2 Checking components
  74
• 2.1 Checking components
  74
• 2.2 Checking Lambda probe heating before catalyst
  74
• 2.3 Checking Lambda probe heating after catalyst
  78
• 2.4 Checking throttle valve control part
  81
• 2.5 Checking intake manifold pressure sender
  84
• 2.6 Checking intake air temperature sender
  86
• 2.7 Checking coolant temperature sender
  90
• 2.8 Checking engine speed sender
  94
• 2.9 Checking injectors
  96
• 2.10 Checking fuel pressure regulator and holding pressure
  102
• 2.11 Checking intake air system for leaks (unmetered air)
  106
• 2.12 Checking intake air preheating
  107
• 2.13 Checking vacuum valve
  107
• 3 Checking functions
  109
• 3.1 Checking functions
  109
• 3.2 Idling check
  109
• 3.3 Checking Lambda probe and Lambda regulation before catalyst
  111
• 3.4 Checking Lambda probe and Lambda regulation after catalyst
  116
• 3.5 Checking ageing of Lambda probe before catalyst
  120
• 3.6 Checking engine operating mode
  121
• 4 Engine control unit
  123
• 4.1 Engine control unit
  123
• 4.2 Checking control unit voltage supply
  123
• 4.3 Procedure after voltage supply open circuit
  125
• 4.4 Replacing engine control unit
  125
• 4.5 Coding engine control unit
  126
• 4.6 Adapting engine control unit to throttle valve control part
  127
• 4.7 Adapting engine control unit to electronic immobilizer
  129
• 5 Checking additional signals
  130
• 5.1 Checking additional signals
  130
• 5.2 Checking speed signal
  130
• 5.3 Checking signal from/to air conditioning system
  132
• 5.4 Checking signal from brake light switch and brake pedal switch
  133
• 5.5 Checking rpm signal
  135
• 5.6 Checking matching resistor of data bus
  136
• Ignition system
  138
• 1 Servicing ignition system
  138
• 1.1 Servicing ignition system
  138
• 1.2 General notes on ignition system
  138
• 1.3 Removing and installing parts of the ignition system
  139
• 1.4 Safety precautions
  142
• 1.5 Test data, spark plugs
  142
• 1.6 Checking Hall sender
  143
• 1.7 Checking ignition transformer
  144
• 1.8 Checking knock sensor
  148
• 1.9 Check misfiring recognition
  150