Engine Controls - System/Component Tests

• Introduction
• Engine Sensors & Switches
  • A/C Switch
  • Airflow Meter/Sensor Inspection
  • Brake Light Switch
  • Clutch Switch (M/T)
  • Coolant Temperature Switch
  • Coolant THERMOSENSOR
  • Crank Angle Sensor
  • Idle Switch
  • Inhibitor Switch (A/T)
  • Knock Sensor
  • Neutral Switch (M/T) Testing
  • Oxygen Sensor (O2)
  • Power Steering Pressure Switch Test
  • Throttle Position Sensor
  • Vehicle Speed Sensor
• Relays, Solenoids, Motors & Modules
  • Circuit Opening Relay
  • Main Relay
  • Air Injection Solenoids
  • Fuel Injectors
  • Fuel Injector Resistance
  • Pressure Regulator Control Solenoid
  • Purge Control Solenoid
• Fuel System
  • Notes
  • Fuel Pump Relay Control
  • Injector Fuel Leakage
  • Pulsation Damper
• Idle Speed Control (ISC) System
  • Air Valve
  • ISC Valve
• Ignition System
• Emission Systems & Sub-Systems
  • Notes
  • Deceleration Control System
  • EGR Position Sensor
  • EGR Solenoid
  • Fuel Evaporation
    • System Inspection
    • Evaporation Line
    • Check Valve
    • Check & Cut Valve
    • Purge Control Solenoid Valve
• Positive Crankcase Ventilation (PCV) System
  • System Inspection
• 1991 Thermostatic Air Cleaner (TAC)
  • Air Cleaner Temperature Sensor
  • Air Control Door
• Miscellaneous Controls
  • A/C Cut-Out Control System