Fuel Delivery and Air Induction: Technical Service Bulletins

• Customer Interest
  • Idle Air Control Valve - Stalling/Poor Idle/Surging
  • Fuel System - Poor Throttle Response
  • Fuel Gauge - Diagnostic Guidelines
    • Overview
    • Test Procedure
  • Engine - Hesitation, OBD Fault 17/DTC P0121 Set
  • Fuel System - Difficulty Refuelling
• By Symptom
  • Customer Interest
    • Idle Air Control Valve - Stalling/Poor Idle/Surging
    • Fuel System - Poor Throttle Response
    • Fuel Gauge - Diagnostic Guidelines
      • Overview
      • Test Procedure
    • Engine - Hesitation, OBD Fault 17/DTC P0121 Set
    • Fuel System - Difficulty Refuelling
  • Driveability
    • Engine - Hesitation, OBD Fault 17/DTC P0121 Set
  • Erratic Operation
    • Idle Air Control Valve - Stalling/Poor Idle/Surging
    • Fuel Gauge - Diagnostic Guidelines
      • Overview
      • Test Procedure
• All Technical Service Bulletins
  • Idle Air Control Valve - Unnecessary Replacement
  • Fuel Pump - Component Replacement
  • Engine - Misfire Diagnosis
    • Overview
    • Misfire General Checks
      • Overview
      • Check Fuel Pressure and Volume
    • Reluctor/Crankshaft Sensor Checks
      • Overview
      • Reluctor Test Automatic Transmission
      • Reluctor Test - Discovery Manual Transmission
    • Exhaust Valve Stick Tests
  • Fuel Injection - Misfire Diagnostics
    • Overview
    • Mechanical Tests
    • Fuel Injector Balance Check
    • Fuel Injector Electrical Checks Using P.A.C.
  • Oxygen Sensor - Codes 44 & 45 Diagnosis
  • Idle Air Control Valve - Stalling/Poor Idle/Surging
  • Mass Air Flow Sensor - Gold Plated Connectors
  • Fuel System - Poor Throttle Response
  • Fuel Gauge - Diagnostic Guidelines
    • Overview
    • Test Procedure
  • Engine - Hesitation, OBD Fault 17/DTC P0121 Set
  • Fuel System - Difficulty Refuelling