OBD2 Error Codes

Learn all about the P2097 code, what causes post catalyst fuel trim system too rich, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2098 code, what causes post catalyst fuel trim system too lean, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2099 code, what causes post catalyst fuel trim system too rich, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P209A code, what causes issues with the reductant injection air pressure sensor, and how to diagnose and fix common problems.

Learn all about the P209B code, what causes issues with the Reductant Injection Air Pressure Sensor, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P209C code, what causes reductant injection air pressure sensor 'B' circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P209D code, what causes issues with the reductant injection air pressure sensor, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P209E code, what causes reductant injection air pressure sensor 'A'/'B' correlation issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P209F code, what causes reductant tank heater control circuit performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P20A0 code, what causes reductant purge control valve circuit/open issues, and how to diagnose and fix common problems to maintain optimal engine performance.