Power Solutions International

DTC 726

UnclassifiedFuel

What This Code Means

Poor engine performance; Drivability issues; Engine does not operate normally; Other DTC codes present; Incorrect throttle mechanical operation; Large manifold vacuum leaks

Possible Causes

  • •Incorrect ECM calibration
  • •Incorrect mechanical operation of the throttle
  • •Large manifold vacuum leaks
  • •Mechanical throttle malfunction
  • •Manifold vacuum leak
  • •Other unresolved DTCs

Suggested Actions

  1. 1Verify and replace ECM with correct service part number if incorrect calibration is in use
  2. 2Correct mechanical operation of the throttle
  3. 3Find and correct engine manifold vacuum leak
  4. 4Clear DTC information from the ECM using the Diagnostic Scan Tool (DST)
  5. 5Perform On-Board (OBD) System Check
  6. 6Diagnose and repair other stored DTC codes before proceeding
  7. 7Replace ECM with correct service part number
  8. 8Find and correct the vacuum leak
  9. 9Clear DTC information from the ECM using DST

Related Power Solutions International Fault Codes

DTC 1151DTC 1162DTC 223DTC 2111DTC 222DTC 2112DTC 219DTC 22 22112211111641162
Browse all Power Solutions International fault codes

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