Engine Controls - System/Component Tests

• Introduction
• Air Induction Systems (Supercharger)
  • Boost Pressure
• Computerized Engine Controls
• Control Unit (AFC-DIGIFANT II)
  • Notes
  • Ground Circuits
  • Power Circuits
• Control Unit (Cis-E)
  • Ground Circuits
  • Power Circuits
• Control Unit (Cis-MOTRONIC)
  • Ground Circuits
  • Power Circuits
• Engine Sensors & Switches
  • Airflow Sensor (Fox & JETTA GLI)
  • Airflow Sensor (Golf & JETTA)
  • Airflow Sensor (VANAGON)
  • Coolant Temperature Sensor
  • Hall Effect Sender
  • Oxygen Sensor (All Models Except VANAGON)
  • Oxygen Sensor (VANAGON)
  • Throttle Valve Switch (VANAGON)
• Relays
  • Fuel Pump Relay (Cabriolet, Golf GL/GTI & JETTA)
  • Fuel Pump Relay (Fox)
  • Fuel Pump Relay (CORRADO)
  • Fuel Pump Relay (VANAGON)
• Fuel Delivery
• Fuel Control
  • Cold Start Valve (All Models Except VANAGON)
  • THERMO Time Switch
• Idle Control System
  • Knock Sensor Control Unit (All Models Except VANAGON)
  • Knock Sensor(S)
  • Idle Stabilization System (VANAGON)
• Ignition Control Unit
  • Notes
  • Ignition Control Unit (All Models Except VANAGON)
  • Ignition Control Unit (VANAGON)
• Emission Systems & Sub-Systems
  • Exhaust Gas RECIRCULATION (EGR)
• Fuel Evaporation
  • EVAP Canister By-Pass Valve (All Models Except VANAGON)
  • EVAP Canister By-Pass Valve (VANAGON)
• Miscellaneous Controls
  • A/C Clutch