Engine Controls - Tests W/Codes - 2.3L CARBURETED

• Introduction
• Self-Diagnostic System
  • Hard Failures
  • Intermittent Failures
  • Retrieving Codes
  • Clearing Trouble Codes
• Code Charts
  • Trouble Code Identification
  • Ecu Terminal Identification
  • Diagnostic Circuit Check
  • Test No. 1 - Check Engine Light Inoperative
  • Test No. 2 - Will Not Flash Code No. 12
  • Code 12 - Ignition Reference Signal
  • Code 13 - Oxygen Sensor Circuit
  • Code 14 - Shorted Coolant Temperature Sensor Signal
  • Code 15 - Open Coolant Temperature Sensor Signal
  • Code 21 - Idle (Vacuum) Switch & Map Sensor
  • Code 22 & 51 - Fuel-Cut Solenoid Circuit
  • Code 23 & 54 - Duty (Mixture Control) Solenoid Circuit
  • Code 25 & 53 - Air Management Valve Circuit
  • Code 26 & 27 - Canister Purge VSV Circuit
  • Code 31 - Ignition Reference Signal
  • Code 32 - EGR System Malfunction
    • Specified Reappearance Pattern
  • Code 34 - EGR Gas Temperature Sensor
  • Code 44 - Oxygen Sensor-Lean Fuel Mixture
  • Code 45 - Oxygen Sensor-Rich Fuel Mixture
  • Code 51 - Fuel-Cut Solenoid Circuit
  • Code 52 - Faulty ECM Ram
  • Code 53 - Air Switching Valve VSV Or ECM
  • Code 54 - Duty (Mixture Control) Solenoid Circuit
  • Code 55 - Faulty ECM
• Summary