Fault Codes/Discovery Energy, LLC (Rehlko)/P2196Discovery Energy, LLC (Rehlko)P2196ErrorSensorsWhat This Code MeansHEGO sensor Signal Stuck Rich B1S1Possible Causes•Problem with high fuel pressure, intake and exhaust restrictions, or the HEGO sensorSuggested Actions1Check for restrictions in the air intake system and air cleaner2Check fuel pressure regulator and outlet pressure3Check for exhaust restrictions4Troubleshoot the HEGO sensor for bad leads. Refer to the Heated Exhaust Gas Oxygen (HEGO) Sensor Troubleshooting section5Replace the HEGO sensor. Refer to the Heated Exhaust Gas Oxygen Sensor (HEGO) sectionRelated Discovery Energy, LLC (Rehlko) Fault CodesP2231P2270P2195P2271P1138 3217 31P2297P1136P1135P0134P0133P26 - 48P26 - 47Browse all Discovery Energy, LLC (Rehlko) fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for P2196 on your specific Discovery Energy, LLC (Rehlko) unit — cited to the OEM manual, not a forum guess.Your question about P2196GET THE ANSWERFree account required — we'll bring your question with you.