Engine Controls - Basic Testing - 4.3L

• Introduction
• Preliminary Inspection & Adjustments
  • Visual Inspection
  • Mechanical Inspection
    • Compression
    • Exhaust System Backpressure
• Fuel System
  • Notes
  • Fuel System Pressure Release
  • Fuel Pump Pressure Test
  • Fuel Pump Relay Test
• Ignition Checks
  • Direct Ignition System (Dis)
    • Ignition Coil
    • Ignition System Check
• Idle Speed & Ignition Timing
• Trouble Shooting
  • Notes
  • On-Board Diagnostic (OBD) System Check
    • Notes
    • The OBD System Check determines:
  • Malfunction Indicator Light (Mil)
  • DLC Diagnosis Or No Scan Tool Data
  • No Start - Engine Cranks Okay
    • Notes
    • General Inspection
    • Ignition System
    • Fuel System
  • Fuel System Diagnosis
• Summary