1AV injection and ignition system

Chapter overview

• Self-diagnosis
  1
• 1 Self-diagnosis
  1
• 1.1 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 control unit
  2
• 1.6 Interrogating and erasing fault memory
  6
• 1.7 Fault table
  8
• 2 Final control diagnosis
  12
• 2.1 Final control diagnosis
  12
• 2.2 Performing final control diagnosis
  12
• 3 Measured value blocks
  15
• 3.1 Measured value blocks
  15
• 3.2 Read measured value block and basic settings
  15
• 3.3 Display group overview
  16
• Mixture preparation, Injection
  19
• 1 Servicing injection system
  19
• 1.1 Servicing injection system
  19
• 1.2 Fitting locations overview
  19
• 1.3 General notes on injection
  21
• 1.4 Removing and installing parts of the injection system
  23
• 1.5 Dismantling and assembling fuel rail with injectors
  29
• 1.6 Dismantling and assembling intake manifold
  30
• 1.7 Dismantling and assembling air cleaner
  32
• 1.8 Safety precautions
  35
• 1.9 Rules for cleanliness
  35
• 1.10 Technical data
  35
• 2 Check components and functions
  36
• 2.1 Check components and functions
  36
• 2.2 Checking Lambda probe and Lambda control
  36
• 2.3 Checking Lambda probe heating
  38
• 2.4 Checking engine operating mode
  39
• 2.5 Checking throttle valve control part
  41
• 2.6 Checking intake manifold pressure sender
  47
• 2.7 Checking coolant temperature sender
  49
• 2.8 Checking intake air temperature sender
  52
• 2.9 Checking injectors
  55
• 2.10 Checking fuel pressure regulator and holding pressure
  57
• 2.11 Checking intake air system for leaks (unmetered air)
  60
• 2.12 Checking intake air preheating
  60
• 2.13 Wire routing engine wiring loom
  62
• 3 Replacing and matching engine control unit
  63
• 3.1 Replacing and matching engine control unit
  63
• 3.2 Replacing engine control unit
  63
• 3.3 Performing basic setting
  64
• 3.4 Matching engine control unit to electronic immobilizer
  65
• 3.5 Checking control unit voltage supply
  66
• 4 Checking additional signals
  67
• 4.1 Checking additional signals
  67
• 4.2 Testing speed signal
  67
• 4.3 Checking air conditioner and air conditioner compressor signals
  69
• Ignition system
  71
• 1 Servicing ignition system
  71
• 1.1 Servicing ignition system
  71
• 1.2 General notes on ignition system
  71
• 1.3 Removing and installing parts of the ignition system
  72
• 1.4 Dismantling and assembling distributor
  75
• 1.5 Safety precautions
  76
• 1.6 Adjustment data, Spark plugs
  76
• 1.7 Checking and adjusting ignition timing
  76
• 1.8 Checking Hall sender
  78
• 1.9 Checking ignition transformer and output stage
  79
• 1.10 Checking knock sensor
  81