Engine Controls - System/Component Tests

• Introduction
• Air Induction Systems (Turbochargers)
  • WASTEGATE/Boost Pressure Test
  • WASTEGATE Actuator
  • WASTEGATE Solenoid
• Engine Sensors & Switches
  • A/C On Switch System Test
  • A/C Pressure Sensor (2.3L & 3.1L J Body)
  • A/C Pressure Switch
  • Brake Switch
  • Camshaft Sensor (3.8L VIN C)
  • Coolant Level Sensor/Coolant Level Light
  • Coolant Temperature Sensor (Cts)
  • Crankshaft Position Sensor (2.3L IDI)
  • Crankshaft Position Sensor (Dis)
  • Dual Crank (Combination) Sensor (3.3L C(3)I System)
  • EGR Position Sensor
  • Engine Oil Temperature Sensor (5.7L VIN 8)
  • Knock Sensor
  • Camshaft Sensor/Hall Effect Switch (CADILLAC Except Brougham)
  • Manifold Absolute Pressure (Map) Sensor
  • Manifold Air Temperature (Mat) Sensor
  • Mass Airflow Sensor
  • Oxygen Sensor (O2)
  • P/N Switch
  • Power Steering Pressure Switch (PSPS)
  • Pressure/BARO Sensor CARBURETED 5.0L (VIN Y)
  • Throttle Position Sensor (TPS)
  • Vehicle Speed Sensor (Pm Generator Type)
  • Vehicle Speed Sensor (Led Type)
• Relays
  • A/C Relays
  • Fuel Pump Relay
• Solenoids
  • Notes
  • Canister Purge Solenoid
  • Mixture Control Solenoid
  • ILC/RVB/EGR Solenoid
  • WASTEGATE Solenoid
• Motors
  • Idle Air Control (IAC) Motor
  • Idle Speed Control (ISC) Motor
• Fuel System
  • Notes
  • Fuel Pressure Regulator (PFI)
  • Fuel Pressure Regulator (TBI)
  • Fuel Pump Relay
  • Fuel Pump Relay By-Pass Procedure
• Fuel Control (CARBURETED)
  • Notes
  • Float Level (On-Vehicle)
  • Hot Air Choke
  • Mixture Control Solenoid
  • Oxygen Sensor
  • Vacuum Break
• Fuel Control (Fuel Injected)
  • Fuel Injector(S)
  • Injector Balance Test
  • Oxygen Sensor
• Idle Control System
  • Idle Air Control (IAC) Motor
  • Idle Speed Control (ISC) Motor (CADILLAC Except Brougham)
  • Idle Switch (CADILLAC Except Brougham)
  • Idle Load COMPENSATOR (ILC)
• Ignition System (C3I)
  • Chart C-4-1 (C3I Misfire At Idle 3.3L VIN N)
  • Chart C-4-2 (C3I Misfire Under Load Idle 3.3L VIN N)
• Ignition System (Exc. C3I)
• Timing Control Systems
  • Electronic Spark Timing (Est) Advance System
  • Electronic Spark Control (ESC) Retard System (Without ESC Controller)
  • Electronic Spark Control (ESC) Retard System (With ESC Controller)
• Air Injection
  • Air Pump
  • Check Valve
  • Deceleration Valve
  • Electric Divert & Electric Switching Valve (EDES)
  • Pressure Operated ELEC. Divert/ELEC. Switching (PEDES)
• Early Fuel Evaporation (EFE) CARBURETED 5.0L (VIN Y)
  • Notes
  • Early Fuel Evaporation System Check
• Exhaust Gas RECIRCULATION (EGR)
  • Notes
  • System Test
  • EGR Control Solenoid
  • Digital EGR Valve
  • Positive BACKPRESSURE EGR Valve
  • Negative BACKPRESSURE EGR Valve
  • Pulse Width Modulated EGR Valve
  • Integrated Electronic EGR Valve
• Fuel Evaporation Control
  • Notes
  • Canister Control Valve (Type 1)
  • Canister Control Valve (Type 2)
  • Canister Purge Solenoid
  • EVAP Purge Valve Solenoid
  • Fuel Tank Pressure Control Valve
  • Thermal Bowl Vent Valve (TBVV) CARBURETED 5.0L (VIN Y)
• PCV
  • Checking PCV Valve Function
  • PCV Valve Function
• Thermostatic Air Cleaner
  • Temperature Sensor
  • Vacuum Diaphragm Motor
• Miscellaneous ECM Controls
  • Notes
  • A/C Clutch
    • A/C Clutch Relay
  • A/C Wot Cut-Out Relay
• Cooling Fan
  • Notes
  • Cooling Fan System & Quad-Driver Check
  • Cooling Fan Relay
  • Cooling Fan Motor
• Coolant Level Light
• Hot Light Or Coolant Temperature Light
• Transmission
  • Converter Clutch Solenoid
  • Converter Lock-Up Signal At Transmission
  • Converter Lock-Up Signal From ECM
  • Shift Light (Manual Transmission)
  • 1-4 Shift System Check (Manual Transmission Corvette)
  • 1-4 Shift Light (Manual Transmission Corvette)
  • 1-4 Shift Relay (Manual Transmission Corvette)
• Component Locations