Engine Control System Tests W/O Codes

• Introduction
• Symptoms
  • Symptom Diagnosis
  • Engine Cranking Or Starting Problems
    • Engine Fails to Crank
    • Engine Cranks but Fails to Start
    • Engine Difficult to Start Under Normal Conditions
    • Engine Difficult to Start Under Cold Conditions
    • Engine Difficult to Start Under Hot Conditions
  • Engine Idling Problems
    • Incorrect Idle at Engine Start-up
    • Engine Idle Speed Remains High
    • Engine Idle Speed Remains Low
    • Rough Engine Idle
    • Engine Misfires
  • Engine DRIVEABILITY Problems
    • Hesitation & Poor Acceleration
    • Engine Backfires
    • Engine Surges
    • Engine Knocks
    • Muffler Explosion
  • Engine Stalling Problems
    • Engine Stalls soon after Start-up
    • Engine Stalls after Accelerator is Depressed
    • Engine Stalls after Accelerator is Released
    • Engine Stalls during A/C Operation
    • Engine Stalls when Shifting from Neutral into Drive (A/T Models)
• INTERMITTENTS
  • Intermittent Problem Diagnosis
  • Test Procedures
    • Intermittent Simulation
  • Vibration Method
    • Wiring Harness Testing
    • Component, Relay & Sensor Testing
    • Electrical Connector Testing