Air Flow Meter/Sensor: Technical Service Bulletins

• Air/Fuel Mixture - Trim Code Diagnosis
  • Overview
  • Short/Long Term Fuel Trim (ST/LT Trim)
  • Oxygen Sensor Trim (Trim B1 S1 & Trim B1 S2
  • Fuel Trim Diagnostic Codes
  • Accent, Elantra & Tiburon Fuel Trim Codes
  • Sonata Fuel Trim Code
  • Fuel Trim Code Troubleshooting Tips
  • DTC P1124,1128, or P0170 (Positive Fuel Trim Numbers
  • DTC P1123,1127 or P0170 (With Negative Fuel Trim Number
  • Oxygen Sensor Scan Tool Testing Procedure