Engine Controls - Tests W/O Codes

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