P Codes – OBD2 Powertrain Codes

Learn all about the P043A code, what causes catalyst temperature sensor circuit issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P043B code, what causes catalyst temperature sensor circuit range/performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P043C code, what causes catalyst temperature sensor circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P043D code, what causes catalyst temperature sensor circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P043E code, what causes evaporative emission system leak detection reference orifice issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P043F code, what causes evaporative emission system leak detection reference orifice, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P0447 code, what causes evaporative emission system vent control circuit open, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P0448 code, what causes evaporative emission system vent control circuit shorted, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P044A code, what causes exhaust gas recirculation sensor "C" circuit issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P044B code, what causes exhaust gas recirculation sensor "C" circuit range/performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.