Engine Controls - Basic Testing

• Introduction
• Preliminary Inspection & Adjustments
  • Visual Inspection
  • Mechanical Inspection
    • Compression
    • Exhaust System Backpressure
  • Pcm Replacement Check
• No Start Diagnosis (A-3)
  • Notes
  • Engine Controls - Basic Testing
    • Definition
  • No Start - Engine Cranks Okay (3.4L MFI With Dis)
    • Notes
    • General Inspection
    • Ignition System (3.4L VIN S "F" Body)
  • No Start - Engine Cranks Okay (5.7L MFI W/OPTI-Spark)
    • General Inspection
    • Ignition System
• Basic Fuel System Checks (A-7)
  • Notes
  • Fuel System Pressure Test
    • Fuel Pressure Relief (MFI)
    • Fuel Pressure Check (MFI)
    • Fuel Pump Relay
    • Fuel Pump Relay By-Pass Procedure
  • Field Service Mode Check
• Basic Ignition System Checks (C-4)
  • HEI-Est Distributor
    • Notes
    • Spark
    • Ignition Coil Power Source
    • Ignition Coil Resistance
    • Distributor Pick-Up Coil Short & Resistance Checks
    • Tach Pulse (RPM) Signal
  • Dis (3.4L)
    • Spark
    • Ignition Coil Power Source
    • Ignition Coil Resistance
    • Crankshaft Sensor Pick-Up Coil Short & Resistance Checks
    • Crankshaft Sensor Output Signal
    • Tach Pulse (RPM) Signal
  • OPTI-Spark (5.7L)
    • Spark
    • Ignition Coil Power Source
    • Ignition Coil Resistance
    • Tach Pulse (RPM Reference) Signal
• Idle Speed & Ignition Timing
• Diagnostic Circuit Check
  • Notes
  • A-1, Mil Inoperative
  • A-2, Mil On Steady Or Won't Flash Code 12
    • Notes
    • 3.4L
    • 5.7L
• Summary
• Wiring Diagrams
  • 3.4L
  • 5.7L