Engine Controls - Description And Operation - 4.2L

• Description and Operation
  • Throttle Actuator Control (TAC) System Description
    • Throttle Actuator Control (TAC) Overview
    • Accelerator Pedal Position (APP) Sensor
    • Throttle Body Assembly
    • Modes of Operation
      • Battery Saver Mode
      • Reduced Engine Power Mode
  • Fuel System Description
    • Fuel System Overview
    • Fuel Tank
    • Fuel Fill Pipe
    • Fuel Filler Cap
    • Fuel Sender Assembly
    • Fuel Level Sensor
    • Fuel Pump
    • Fuel Filter
    • Fuel Feed and Return Pipes
    • Nylon Fuel Pipes
    • Quick-Connect Fittings
    • Fuel Pipe O-Rings
    • Fuel Rail Assembly
    • Fuel Injectors
    • Fuel Pressure Regulator Assembly
    • Fuel Metering Modes of Operation
      • Notes
      • Starting Mode
      • Clear Flood Mode
      • Run Mode
      • Acceleration Mode
      • Deceleration Mode
      • Battery Voltage Correction Mode
      • Fuel Cutoff Mode
    • Fuel Trim
  • Evaporative Emission Control System Description
    • EVAP System Operation
    • Large Leak Test
    • Small Leak Test
    • Canister Vent Restriction Test
    • Purge Solenoid Leak Test
    • Check Gas Cap Message
    • EVAP System Components
      • Notes
      • EVAP Canister
      • EVAP Purge Solenoid
      • EVAP Vent Solenoid
      • Fuel Tank Pressure Sensor
      • EVAP Service Port
  • Electronic Ignition System Description
    • Notes
    • Crankshaft Position (CKP) Sensor
    • Camshaft Position (CMP) Sensor
    • Ignition Coils
    • Powertrain Control Module (PCM)
    • Modes of Operation
  • Knock Sensor System Description
    • Purpose
    • Sensor Description
  • Air Intake System Description
    • Notes
    • Air Cleaner Restriction Indicator