Engine Controls - Tests W/O Codes - Trouble Shooting No Codes

• Introduction
• Symptoms
  • Symptom Diagnosis
  • Hard To Start (Cranks Normally)
  • No Start (Cranks Normally)
  • Rough Or Unstable Idle
  • High Idle After Warm-Up
  • Engine Stalls
    • Cold
    • Warm
  • Engine Misfires Or Has Lack Of Power
  • Engine Runs Rough On Deceleration
  • Backfire In Exhaust System
  • Poor Fuel Mileage
  • Excessive Oil Consumption
  • Abnormal Noise Or Knocking
• INTERMITTENTS
  • Intermittent Problem Diagnosis
  • Test Procedures
    • Intermittent Simulation