Engine Controls - Adjustments

• Introduction
• Engine Mechanical
• Valve Clearance
• Ignition Timing
  • 4-Cylinder Ignition Timing
    • Notes
    • 1.8L & 2.0L
  • V6 Ignition Timing
    • 2.8L
• Idle Speed & Mixture
  • Notes
  • Cold (Fast) Idle
  • Idle Speed & Mixture Adjustment
    • GTI, Jetta GLi & Passat (2.0L CIS-E Motronic)
    • Cabriolet, Corrado, Golf, GTI & Jetta (1.8L Digifant)
    • Corrado (2.8L Motronic PFI)
• Idle & Full Throttle Switches
  • Idle Speed Adjustment
    • Idle Speed Adjustment - Digifant
  • Throttle Stop Screw
  • Idle & Full Throttle Switch Adjustments
    • Idle & Full Throttle Switch Adjustment - Digifant
    • Idle Switch Checking & Adjustment - Digifant (Fox)
  • Airflow Sensor Potentiometer Adjustment
    • Airflow Sensor Potentiometer Adjustment CIS-E Motronic (Fox, GTI & Jetta GLi 2.0L)