Engine Controls - Self-Diagnosis - Tests Without Codes

• Introduction
• Symptoms
  • Symptom Diagnosis
  • Engine Does Not Start (Will Not Crank)
  • Engine Cranks, But Fails To Start
  • Engine Backfires
  • Loss Of Power
  • Detonation (Engine Knock)
  • Stalls At Idle
  • Engine Runs Rough (Off Idle)
  • Rough Or Unstable Idle
  • Engine Misfires - All Conditions
  • Poor Fuel Economy
  • Excessive Emissions
• INTERMITTENTS
  • Intermittent Problem Diagnosis
  • Test Procedures
    • Intermittent Simulation