Engine Controls - Tests W/O Codes

• Introduction
• Symptoms
  • Symptom Diagnosis
  • No Start - Cold Engine
  • Starts But Stalls - Cold Engine
  • Hard To Start - Cold Engine
  • No Start - Warm Engine
  • Erratic Idle - Warm-Up
  • Backfiring
  • Incorrect Idle Speed
  • Off-Idle Hesitation
  • Knocking
  • Coasting Hesitation
  • Engine Misfire - All Conditions
  • Insufficient Engine Power
  • Poor Fuel Economy
  • EXCESSIVE EMISSIONS (HC & NOx)
• INTERMITTENTS
  • Intermittent Problem Diagnosis
  • Test Procedures
    • Intermittent Simulation