Gasoline Fuel Injection Trouble Shooting

• Condition & Possible Cause
  • Cold Start Symptom
    • Engine Cranks, Will Not Start
    • Engine Hard Starting
  • Hot Starting Symptom
    • Engine Cranks, Will Not Start
    • Engine Hard Starting (Long Cranking Time)
    • Rough Idle During Warm-Up
  • Hot Engine DRIVEABILITY Symptom
    • Rough Idle With Warm Engine
    • CO Level Too High at Idle
    • CO Level Too Low at Idle
    • Poor Engine Performance
    • Excessive Fuel Consumption
    • Engine Misfire at High Speed
    • Engine Backfires into Intake Manifold
    • Engine "Diesels"
    • Idle Speed Too High; Cannot Be Lowered
    • Engine Backfires into Exhaust Manifold