8916

UnclassifiedGeneral

What This Code Means

MIL ON during active fault; Closed Loop Disabled; Malfunction Indicator Lamp (MIL) ON during active fault

Possible Causes

  • ECM failure
  • Heater failure
  • UEGO sense cell impedance is too high
  • Poor harness
  • Sensor has not warmed up correctly
  • Cracked sensor
  • Heater failure (for smart CAN based sensors)

Suggested Actions

  1. 1Check harness (post-control box, sensor side) for poor connections
  2. 2Replace sensor with known good unit and re-test

Related Power Solutions International Fault Codes

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Get a diagnosis walkthrough for 8916 on your specific Power Solutions International unit — cited to the OEM manual, not a forum guess.

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