Section 51 (Engine Controls - System & Component Tests - CNG)

• Introduction
• Computerized Engine Controls
  • Powertrain Control Module (Pcm)
    • Ground Circuits
    • Power Circuits
• Engine Sensors & Switches
  • Notes
  • Sensors & Switches
    • Clutch Pedal Position (CPP) Switch
    • Engine Coolant Temperature (ECT) Sensor
    • Heated Oxygen Sensor (HO2S)
    • Inertia Fuel Shutoff (IFS) Switch
    • Intake Air Temperature (IAT) Sensor
    • Mass Airflow (MAF) Sensor
    • Park/Neutral Position (PNP) Switch
    • Throttle Position (TP) Sensor
• Relays & Solenoids
  • Relays
    • Fuel Pump Relay
  • Solenoids
    • Canister Vent (CV) Solenoid
    • Canister Purge (CANP) Solenoid
    • EGR Vacuum Regulator (EVR) Solenoid
    • Idle Air Control (IAC) Solenoid Resistance
• Fuel System
  • Fuel System Pressure Release
    • With Fuel Pressure Gauge
    • Without Fuel Pressure Gauge
  • Fuel Delivery
    • Fuel Pump Relay
    • System Integrity Check
    • Check Fuel Pressure
  • Fuel Pressure Regulator
  • Fuel Control
    • Fuel Injector Resistance
    • Fuel Injector Check
• Idle Control System
  • Idle Air Control Solenoid
• Ignition System
  • Notes
  • Engine Controls - System & Component Tests - CNG
    • Preliminary Check
    • Test Equipment
    • Diagnostic Aids
    • Check For Diagnostic Trouble Codes (DTC)
    • Check Battery
    • Check For Spark
    • Check Spark Plugs
• Emission Systems & Sub-Systems
  • Exhaust Catalyst
  • Secondary Air Injection
  • Exhaust Gas RECIRCULATION (EGR)
    • EGR Valve
    • EGR Vacuum Regulator (EVR) Solenoid
  • Fuel Evaporation
    • Notes
    • Canister Purge (CANP) Solenoid
    • Purge Flow (PF) Sensor
    • Canister Vent (CV) Solenoid
    • EVAP Canister
  • Positive Crankcase Ventilation (PCV)
    • Check PCV Valve
    • Check PCV System