P0134

WarningSensors

What This Code Means

HEGO sensor No Activity Detected (B1S1)

Possible Causes

  • •Problem with the HEGO sensor or leads

Suggested Actions

  1. 1Refer to the Heated Exhaust Gas Oxygen Sensor (HEGO) section
  2. 2Troubleshoot the HEGO sensor for bad leads
  3. 3Troubleshoot the HEGO sensor for bad leads. Refer to the Heated

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for P0134 on your specific Discovery Energy, LLC (Rehlko) unit — cited to the OEM manual, not a forum guess.

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