Power Solutions International

1154

UnclassifiedFuel

What This Code Means

Closed Loop multiplier out of range (at limit of -35%) while running on natural gas; Fuel system running rich; One bank shows high adaptive multiplier and the other shows low adaptive multiplier; MIL: ON; System running rich; One bank shows high adaptive and the other is low

Possible Causes

  • •High secondary fuel pressure
  • •Worn fuel mixer
  • •Faulty EPR (Electronic Pressure Regulator)
  • •Drastic variation in fuel quality (high content of ethane and heavier hydrocarbons)
  • •Plugged, damaged, or modified air filter
  • •Crossed O2 sensor leads
  • •Plugged, damaged or modified air filter
  • •O2 sensor leads are crossed

Suggested Actions

  1. 1Obtain a current gas analysis report for your fuel source (if running on wellhead gas)
  2. 2Trace O2 sensor wires back to their ECMs and correct accordingly

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