Fuel Injection/Ignition System Adjustment

• Introduction
• Retrieving Codes
  • Without Tad 99 Tester
  • With Tad 99 Tester
• Code Definition
• Engine Identification
• Operation
  • Simplified MOTRONIC
  • Injection System
  • Ignition System
  • Additional Description
  • Precautions
• Troubleshooting
  • Notes
  • Diagnostic
  • Checks
  • Symptoms Noted Trouble Shooting Chart
  • Part 1 - Component Locations For Electrical Schematics
  • Part 2 - Component Locations For Electrical Schematics
  • Part 3 - Component Locations For Electrical Schematics
• M1.3 MOTRONIC Ignition Checks & Adjustments
  • Initial Throttle Flap Adjustment
    • Notes
    • Preliminary conditions
  • First Throttle
  • Second Throttle
• MOTRONIC Injection - Ignition Checks & Adjustments
  • Notes
  • Check Adjustment Of Idle Speed
• Richness At Idle
  • Notes
  • Throttle Switch Unit M251 Adjustment
    • Notes
    • Preliminary Conditions
    • Function & Numbering Of The Throttle Switch Unit (M251) Pins
  • Adjusting The Idle Position Contact
  • Checking The Idle Position
  • Checking The Full Load Position Contact