DTC 188

UnclassifiedCooling

What This Code Means

Fuel temperature greater than 250°F; Fuel temperature greater than diagnostic threshold

Possible Causes

  • Faulty MFG
  • Faulty EPR
  • Actual high fuel temperature

Suggested Actions

  1. 1Determine cause of high fuel temperature and resolve
  2. 2Replace MFG or EPR
  3. 3Perform On-Board (OBD) System Check
  4. 4Measure fuel temperature with an infrared gun or temperature probe

Related Power Solutions International Fault Codes

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