BOSCH Cis (Lambda) System

• Description
• Operation
  • Mixture Control Unit
  • Control Pressure Regulator
  • Auxiliary Air Valve
  • Cold Start Valve
  • THERMO-Time Switch & Hot Start Relay
  • Injector Nozzles
  • Fuel Pump
  • Oxygen Sensor
  • Electronic Control Unit & Frequency Valve
  • Catalytic Converter
  • Idle Speed Control Systems
    • Mercedes-Benz Electronic Idle Speed Control
    • Volvo Electronic Idle Speed Control
• Testing
  • Notes
  • Preparation For Testing
  • Air/Fuel Mixture Control (Air-Flow Sensor)
  • Cold Engine Control Pressure Test
  • Warm Engine Control Pressure Test
  • System (Line) Control Pressure Test
  • Rest Pressure & Leak Test
  • Cold Start Valve, THERMO-Time Switch & Hot Start Pulse Relay
  • Fuel Injectors
  • Auxiliary Air Valve
• Lambda Control System Checks
  • Preparation For Checks
  • Operation Check
  • Electrical Testing
• Removal & Installation
  • Mixture Control Unit
  • Fuel Distributor
  • Control Pressure Regulator
  • Auxiliary Air Valve
  • Cold Start Valve
  • Fuel Injectors
  • Thermal Switch
  • Frequency Valve
  • Electronic Control Unit
    • Porsche 911SC and Saab
    • Mercedes-Benz and Volvo
    • Peugeot
    • Volkswagen
  • Oxygen Sensor