Power Solutions International, Inc.

8910

UnclassifiedGeneral

What This Code Means

MIL ON during active fault; Closed Loop Disabled

Possible Causes

  • •ECM failure
  • •Engine related problem
  • •Faulty ECM
  • •Faulty UEGO Sensor
  • •Faulty sensor
  • •Fuel system related problem
  • •Poor harness
  • •Short to Vbattery in UEGO sensor harness
  • •Voltage feedback from the UEGO sensor sense cell signal is high

Suggested Actions

  1. 1Disconnect the harness from the UEGO sensor and ECM, then check the sense control signal (between Pin 6 of the UEGO sensor and the ECM pin assigned to UEGOS) for a short to Vbattery using a DMM checking one pin at a time to battery plus
  2. 2Perform OBD system check
  3. 3Perform the On-Board (OBD) System Check
  4. 4Repair short to Vbattery in harness
  5. 5Verify the operation of the MIL

Related Power Solutions International, Inc. Fault Codes

89148916890489208902520240:38901DTC - 163032DTC - 3593031DTC - 520
Browse all Power Solutions International, Inc. fault codes

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