Engine Controls - Basic Testing

• Introduction
• Preliminary Inspection & Adjustments
  • Visual Inspection
  • Mechanical Inspection
    • Compression
    • Exhaust System Backpressure
• Fuel System
  • Notes
  • Fuel System Pressure Release
  • Fuel Pressure
    • Notes
    • Fuel Pump Relay
• Ignition Checks
  • Servicing Precautions
    • Direct Ignition System (DIS)
  • Direct Ignition System
    • Ignition Coil Resistance
    • Ignition Coil Primary Signal Check
    • Ignition Coil Secondary Signal Check
• Idle Speed & Ignition Timing
• Summary
• Wiring Diagrams
  • 325i, 325iC & 325is
  • 525i & 525iT