Feedback Carb. System

• Description
• Operation
  • Dual Catalytic Converter
  • THERMACTOR Air Control
  • Electronically Controlled Feedback Carburetor System
    • Notes
    • Closed Loop Mode
    • Open Loop Mode
    • Model 6500 Feedback Carburetor
    • Vacuum Solenoid Regulator (VSR)
    • Exhaust Gas Oxygen Sensor
    • Throttle Angle Vacuum Switch (Non-Turbo)
    • Cold Temperature Vacuum Switch (Non-Turbo)
    • Idle/Deceleration Vacuum Switch (Turbo)
  • Electronic Control Unit
• Testing & Diagnosis
  • Test Equipment
  • Visual (Pre-Check) Inspection
  • Test Equipment Hook-Up
  • Engine Will Not Start Or Run
  • Vehicle Preparation
  • Data Collection
    • Test Sequence I
    • Test Sequence II
    • Test Sequence III
  • Data Analysis
  • Component Diagnosis
    • Notes
    • Battery Voltage Not Within Limits
    • Cold Temperature Vacuum Switch (CTVS) or Throttle Angle Vacuum Switch (TAVS) Not Within Limits
    • Exhaust Gas Oxygen (EGO) Sensor Not Within Limits
    • EGO Sensor Indication Rich; Control Vacuum High (4.5-5.5 In. Hg); Vacuum Solenoid Light On
    • EGO Sensor Indication Rich; Control Vacuum Low (0-0.5 In. Hg); Vacuum Solenoid Light On
    • EGO Sensor Indication Rich; Control Vacuum Low (0-0.5 In. Hg); Vacuum Solenoid Light Off
    • EGO Sensor Indication Lean; Control Vacuum High (4.5-5.5 Hg); Vacuum Solenoid Light On
    • EGO Sensor Indication Lean; Control Vacuum High (4.5-5.5 Hg); Vacuum Solenoid Light Off
    • EGO Sensor Indication Lean; Control Vacuum Low (0-0.5 In. Hg); Vacuum Solenoid Light Off
    • EGO Sensor Indicator Blinking Lean & Vacuum Solenoid Light Blinking
    • EGO Sensor Indicator Blinking Rich & Vacuum Solenoid Light Blinking
    • Vacuum Solenoid Regulator (VSR) Indicator Light Not Within Limits
    • Feedback Vacuum Control Not Within Limits
• Carburetor Feedback Diaphragm Assembly
• Wiring Diagrams