Power Solutions International

111

UnclassifiedCooling

What This Code Means

MIL (Malfunction Indicator Light) ON; Adaptive disabled during active fault; Damaged or melted MAP sensor; Intake backfire (>= 4 events); Malfunction Indicator Lamp (MIL) ON; Intake Air Temperature greater than 140 degrees F; Burn back or backfire; Intake backfires (4 or more events); MIL ON

Possible Causes

  • •Improper fuel-air mixtures
  • •Worn ignition components
  • •Improper valve lash settings
  • •Engine timing issues
  • •Bad sensors
  • •Problem with the air inlet system
  • •Incorrect valve lash
  • •Engine heat recirculating into the intake
  • •Cracks or breaks in the air inlet system allowing hot air in
  • •Obstructed, modified, or damaged air inlet

Suggested Actions

  1. 1Capture ALL fault code history in MASTER and SLAVE ECMs
  2. 2Download ALL fault code flight data recorders from MASTER and SLAVE ECMs
  3. 3Download ALL fault snapshot from MASTER and SLAVE ECMs
  4. 4Download Backfire Histogram from MASTER and SLAVE ECMs
  5. 5Inspect spark plugs for water ingress/corrosion from the top side (coil side)
  6. 6Inspect ignition coil wire harness (closely looking at pin conditions)
  7. 7Ensure that the air inlet is not obstructed, modified, or damaged
  8. 8Ensure the intake air is being sourced from a cool location
  9. 9Inspect the air inlet system for cracks or breaks
  10. 10Adjust the valve lash according to the 40L Owner's manual or service manual
  11. 11Follow the diagnostic steps for DTC 112 - IAT Low Voltage
  12. 12Capture ALL fault code history in MASTER and SLAVE ECM’s
  13. 13Download ALL fault code flight data recorders from MASTER and SLAVE ECM’s
  14. 14Download ALL fault snapshot from MASTER and SLAVE ECM’s
  15. 15Download Backfire Histogram from MASTER and SLAVE ECM’s (located on Service page)
  16. 16Verify Spark Plug Resistance Value is between 3.5 to 7 kOhm
  17. 17Verify Crank Position Sensor gap and shim as needed

Related Power Solutions International Fault Codes

112116157 418821710241352136015171572520240:3DTC 18 7
Browse all Power Solutions International fault codes

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