DTC1172

UnclassifiedLubrication

What This Code Means

EPR pressure lower than expected

Possible Causes

  • Damaged, corroded, or contaminated EPR electrical connector C018
  • EPR failed fuel pressure test specifications
  • Faulty EPR (Electronic Pressure Regulator)

Suggested Actions

  1. 1Perform On-Board (OBD) System Check
  2. 2Run the fuel pressure diagnostic test
  3. 3Run the EPR pressure test and follow EPR service recommendations from the fuel pressure test chart
  4. 4Inspect EPR electrical connector C018 and repair the circuit as necessary
  5. 5Replace or repair the EPR
  6. 6Clear DTC information from the ECM using the DST

Related Power Solutions International, Inc. Fault Codes

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