Engine Controls - Theory & Operation

• Introduction
• CARBURETED Air Induction System (Prelude)
  • Air Intake System
  • Carburetor
• Fuel Injection (EFI) Air Induction System
  • Air Intake System
  • By-Pass Control System (Prelude 2.0L)
  • Tandem Control Valve System (Civic & CRX TBI)
  • Throttle Control System
  • Throttle Body (Except Civic & CRX TBI)
  • Throttle Body (Civic & CRX TBI)
• Computerized Engine Controls
  • Notes
  • Electronic Control Unit (Ecu)
  • Input Devices
    • Notes
    • A/C Switch Signal
    • Alternator (FR) Signal (EFI)
    • Atmospheric Pressure (PA) Sensor (EFI)
    • Automatic Transmission Shift Position Signal
    • Battery Voltage (Carb.)
    • Battery Voltage (IGN.1)
    • Brake Switch Signal (Civic & CRX)
    • Clutch Switch Signal (M/T With Carb.)
    • Coolant Temperature (TW) Sensor
    • CYL Sensor (Prelude SFI)
    • Electric Load Detector (Civic & CRX)
    • Exhaust Gas Recirculation Valve Lift Sensor (Calif. Except Carb. & Civic 1.6L)
    • Ignition Coil Output Signal (Carb.)
    • Intake Air Temperature (TA) Sensor
    • Manifold Absolute Pressure (MAP) Sensor
    • Oxygen (O2) Sensor
    • Power Steering Pressure Switch (Accord & Prelude SFI)
    • Starter Signal
    • TDC/CRANK Sensor (Civic, CRX 1.5L TBI & Prelude)
    • TDC/CRANK/CYL Sensor (Accord, Civic 1.6L & CRX HF & Si)
    • Throttle Angle (Position) Sensor
    • Vehicle Speed Sensor/Pulser
  • Output Devices
• Fuel System
  • Fuel Delivery
    • Carbureted
    • Fuel Injection
    • Fuel Pump
    • Fuel Pump Cut-Off Relay (Prelude Carb.)
    • Injector Resistor(s) (Except Civic 1.5L & CRX Std.)
    • Main Relay (Fuel Injection)
    • Pressure Regulator (Fuel Injection)
  • Fuel Control (CARBURETED)
    • Programmed Carburetor (PGM-CARB) (Prelude)
    • Air Jet Controller
    • Air Leak Solenoid Valve
    • Feedback Control Solenoid Valve
    • Power Valve
    • Primary Slow Mixture Cut-Off Solenoid
    • Slow Air Jet Control System
    • Vacuum Piston Control Solenoid Valve
  • Fuel Control (Fuel Injection)
    • Programmed Fuel Injection (PGM-FI) ECU
    • Fuel Injector
  • Idle Speed (CARBURETED)
    • A/C Idle Boost Solenoid Valve
    • Cranking Leak Solenoid Valve
    • Electronic Air Control Valve (EACV)
    • Idle Control System
  • Idle Speed (Fuel Injection)
    • Notes
    • A/C Clutch Engagement Delay (Civic, CRX & Prelude)
    • Electronic Air Control Valve (EACV)
    • Fast Idle Valve (Accord & Prelude)
    • Fast Idle Control Solenoid Valve (Civic 1.6L & CRX Si)
• Ignition System
  • Engine Controls - Theory & Operation
    • Accord
    • Civic, CRX & Prelude
  • Ignition Timing Control
    • Accord
    • Civic, CRX & Prelude SFI
    • Prelude Carb.
    • Ignition Control Solenoid Valve (Accord SFI)
    • Ignitor Unit
• Emission Systems
  • Air Injection System (CARBURETED)
    • Notes
    • Air Suction Control Solenoid Valve
  • Exhaust Gas RECIRCULATION (EGR) System
    • Notes
    • EGR Valve
    • EGR Control Solenoid Valve
    • EGR Control Valves "A" & "B" (Prelude Carb.)
    • Exhaust Gas Recirculation Valve Lift Sensor (Calif. Except Carbureted & Civic 1.6L)
  • Fuel Evaporation (EVAP)
    • Notes
    • Air Vent Cut-Off Solenoid Valve (Prelude Carbureted)
    • Carburetor Vapor Control System (Prelude Carb.)
    • Charcoal Canister
    • Fuel Tank Vapor Control System
    • Inner Vent Solenoid Valve (Prelude Carb.)
    • Purge Cut-Off Control Solenoid Valve (Prelude Carb.)
    • Vapor Purge Control System
  • Intake Air Control System
    • Thermostatic Air Cleaner (TAC)
  • Positive Crankcase Ventilation (PCV) System
• Self-Diagnostic System
  • Check Engine Light & Led Indicator
• Miscellaneous
  • Notes
  • Air Conditioning
    • A/C Clutch
  • Transmission Control
    • Lock-Up Control Solenoid Valve (Civic & CRX A/T)