Engine Controls - Basic Diagnostic Procedures

• Introduction
• Preliminary Inspection & Adjustments
  • Visual Inspection
  • Mechanical Inspection
    • Compression
    • Exhaust System Backpressure
• Fuel System
  • Notes
  • Relieving Fuel Pressure
  • Fuel Pressure
  • Fuel Pump Circuit Tests
• Fuel Injector Circuit Tests
• Ignition Checks
  • Notes
  • Spark
  • Ignition Coil Resistance
  • Ignition Control System Tests
• Idle Speed & Ignition Timing
• ECM Power Supply & Ground Tests
• Summary