Fault Codes/Discovery Energy, LLC (Rehlko)/1695 18Discovery Energy, LLC (Rehlko)1695 18UnclassifiedGeneralWhat This Code MeansSystem too Lean at Higher LoadPossible Causes•Problem with the closed-loop feedback controlSuggested Actions1Check for misfires2Check fuel quality3Check fuel pressure regulator and outlet pressure4Check for exhaust leaks5Check for intake manifold leaks6Troubleshoot the HEGO sensor for bad leads7Replace the HEGO sensorRelated Discovery Energy, LLC (Rehlko) Fault Codes3217 5P00061270 6P0007P0031P0032P050CP0068P0102P0103P0107P0108Browse all Discovery Energy, LLC (Rehlko) fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 1695 18 on your specific Discovery Energy, LLC (Rehlko) unit — cited to the OEM manual, not a forum guess.Your question about 1695 18GET THE ANSWERFree account required — we'll bring your question with you.