Engine Controls - System/Component Tests

• Introduction
  • Notes
  • Using Check Harness
  • Connecting Tachometer
• Connector Identification
• Computerized Engine Controls
  • ECM Ground Circuits
  • ECM Back-Up Power Circuit (Battery)
  • ECM Power Source Circuit (Ignition Keyed)
• Engine Sensors & Switches
  • Camshaft Sensors
  • Crankshaft Sensor
  • Engine Coolant Temperature (ECT) Sensor
  • Intake Air Temperature (IAT) Sensor
    • IAT Sensor Resistance
  • Knock Sensor
  • Mass Airflow (MAF) Sensor
    • MAF Sensor Voltage
  • Oxygen Sensor Heater Resistance
  • Oxygen Sensor Operation
  • Park/Neutral Position (PNP) Switch
  • Park/Neutral Position (PNP) Switch Circuit
  • Sub-Throttle Position (Sub-TP) Sensor
  • Throttle Position (TP) Sensor
  • Vapor Pressure Sensor
  • Vehicle Speed Sensor (VSS) No. 1
  • Vehicle Speed Sensor (VSS) No. 1 Circuit (Speedometer Operates)
  • Vehicle Speed Sensor (VSS) No. 1 Circuit (Speedometer Does Not Operate)
• Modules, Motors, Relays & Solenoids
  • Modules
    • Fuel Pump ECU
    • Ignitor
  • Motors
    • Idle Air Control (IAC) Valve
  • Relays
    • Notes
    • Preliminary Information
    • Test Procedure No. 1
    • Test Procedure No. 2
    • Test Procedure No. 3
    • Test Procedure No. 4
  • Solenoids
    • ACIS Vacuum Switching Valve (VSV)
    • EGR Vacuum Switching Valve (VSV)
    • EVAP (Charcoal) Canister Purge Vacuum Switching Valve (VSV)
    • Fuel Injectors
    • Fuel Pressure Regulator Vacuum Switching Valve (VSV)
    • Vapor Pressure Sensor Vacuum Switching Valve (VSV)
• Fuel System
  • Fuel Cut System Operation
  • Fuel Injector Circuit
  • Fuel Injector Operation
  • Fuel Injector Resistance
  • Fuel Injector Volume
  • Fuel Pump Operation
    • Checking Fuel Pump Operation (Using Scan Tester)
    • Fuel Pump Operation (Using Battery Voltage)
  • Fuel Pump Resistance
  • Fuel Pump Control Circuit
  • Fuel Pump Pressure
  • Fuel Pressure Regulator
  • Fuel Pressure Regulator Vacuum Switching Valve (VSV)
  • Fuel Pressure Regulator VSV Control Circuit
  • Fuel System Pressure
• Idle Control System
  • A/C Idle-Up System
  • Idle Air Control (IAC) System
    • IAC System Operation
    • IAC System Circuit
    • IAC Valve Resistance
    • IAC Valve Operation
• Ignition System
  • Notes
  • Distributor Sensors
  • IGNITOR
  • Ignition Coil Resistance
• Emission Systems & Sub-Systems
  • Exhaust Gas RECIRCULATION (EGR) System
  • Exhaust Gas RECIRCULATION (EGR) Valve
    • Resistance Test
    • Operation Test
  • Exhaust Gas RECIRCULATION (EGR) Temperature Sensor
  • Fuel Evaporation
    • EVAP Canister
    • EVAP Vacuum Switching Valve (VSV)
    • Check Valve For EVAP Canister
    • Vapor Pressure Sensor
    • Vapor Pressure Sensor Vacuum Switch Valve (VSV)
  • Positive Crankcase Ventilation (PCV)
    • PCV Valve
• Throttle Controls
  • Dashpot
  • Throttle Opener
• Miscellaneous Controls
  • Notes
  • Cooling Fan System
  • Transmission