DTC 1152

UnclassifiedFuel

What This Code Means

Closed Loop multiplier out of range (at limit of -35%) while running on propane; System running rich; One engine bank shows high adaptive fuel correction while the other shows low

Possible Causes

  • High secondary fuel pressure
  • Worn fuel mixer
  • Faulty EPR (Electronic Pressure Regulator)
  • Drastic variation in fuel quality (very high butane content)
  • Plugged, damaged, or modified air filter
  • Crossed O2 sensor leads

Suggested Actions

  1. 1Ensure the specified HD-5 or HD-10 motor fuel grade LPG is used
  2. 2Trace O2 sensor wires back to their ECMs and correct crossed leads

Related Power Solutions International, Inc. Fault Codes

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