Power Solutions International

1111

UnclassifiedSpeed

What This Code Means

Malfunction Indicator Lamp (MIL) ON; Engine speed exceeds 2300 rpm; Malfunction Indicator Lamp (MIL) illuminated; Engine performance and drivability issues

Possible Causes

  • •Engine speed exceeds the specified speed settings in the calibration (greater than 2300 rpm limit)
  • •Faulty mechanical operation of the throttle
  • •Incorrect ECM calibration (incorrect service part number)
  • •Large manifold vacuum leaks
  • •Presence of other diagnostic trouble codes (DTCs)

Suggested Actions

  1. 1Check for other stored DTC codes
  2. 2Repair any existing codes starting with the lowest numerical code first
  3. 3Perform On-Board Diagnostic (OBD) System Check
  4. 4Diagnose and repair any other present DTC codes before proceeding
  5. 5Verify ECM service part number and replace ECM with correct service part number if needed
  6. 6Correct mechanical operation of the throttle
  7. 7Inspect engine for and repair large manifold vacuum leaks
  8. 8Clear DTC information from the ECM using a Diagnostic Scan Tool (DST) and road test the vehicle to verify repair

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