Engine Control System Tests W/O Codes

• Introduction
• Symptoms
  • Symptom Diagnosis
  • Does Not Start
    • Engine Does Not Crank
    • No Initial Combustion
    • No Complete Combustion
  • Difficult To Start
    • Difficult To Start, Cranks Normal
    • Difficult To Start When Cold
    • Difficult To Start When Hot
  • Poor Idling
    • High Idle Speed
    • Low Idle Speed
    • Rough Idle
    • Surging
  • Poor DRIVEABILITY
    • Hesitation/Poor Acceleration
    • Surging
  • Engine Stalls
    • Engine Stalls After Start
    • Engine Stalls During A/C Operation
• INTERMITTENTS
  • Intermittent Problem Diagnosis
  • Test Procedures
    • Intermittent Simulation
  • Vibration Method
    • Wiring Harness Testing
    • Component, Relay & Sensor Testing
    • Electrical Connector Testing
  • Heating Method
    • Component Testing
  • Water Sprinkling Method