Tune-up and Engine Performance Checks: Technical Service Bulletins

• Customer Interest
  • Engine Control - EPROM to Improve Driveability Problems
  • Engine - PROM Update Improves Hesitation and Instability
  • Engine Control - Rough Idle Diagnosis for MAF Sensor
  • Engine - Poor Idle Quality
• By Symptom
  • Customer Interest
    • Engine Control - EPROM to Improve Driveability Problems
    • Engine - PROM Update Improves Hesitation and Instability
    • Engine Control - Rough Idle Diagnosis for MAF Sensor
    • Engine - Poor Idle Quality
  • Driveability
    • Engine - Poor Idle Quality
  • Poor performance
    • Engine - Poor Idle Quality
  • Sticking/Binding
    • Throttle - Difficult to Open on Cold Engine
      • Overview
      • Modification Procedure
    • EGR Valve - DTCs P0400, P1400, and P1401 EGR
• All Technical Service Bulletins
  • Engine Control - EPROM to Improve Driveability Problems
  • Engine - PROM Update Improves Hesitation and Instability
  • Engine Control - Rough Idle Diagnosis for MAF Sensor
  • Throttle Body - Deposits/Sticking
  • Throttle - Difficult to Open on Cold Engine
    • Overview
    • Modification Procedure
  • Engine - Poor Idle Quality
  • EGR Valve - DTCs P0400, P1400, and P1401 EGR
  • Engine Performance - Correcting Poor Idle Quality
  • Tool - Fuel Pressure Testing
  • Tool - Fuel Pressure Tester Adapter