General Motors Controlled Combustion System

• Description & Operation
  • Notes
  • 1) Transmission Controlled Spark with Exhaust Gas Recirculation (TCS/EGR)
  • 2) Combined Emission Control with Exhaust Gas Recirculation (CEC/EGR)
  • 3) Ported Vacuum Advance with Exhaust Gas Recirculation (PVA/EGR)
  • TCS/EGR
  • CEC/EGR
  • PVA/EGR
  • Temperature Switch
  • Thermal Vacuum Switch
  • Thermal Check and Delay Valve
  • Vacuum Reducer Valve
  • Distributor Vacuum Advance Solenoid
• Testing
  • TCS System
• Adjustment
  • CEC Valve Adjustment
  • Transmission Switch
• Maintenance