Power Solutions, Inc.

131

UnclassifiedEmissions

What This Code Means

MIL-On (Malfunction Indicator Lamp on); Engine operating on default MAP (Limp-Home Condition); Engine running rough; Engine running unstable; Engine missing; Misfire

Possible Causes

  • •ECM connector terminals damage, corrosion, or contamination
  • •Faulty TMAP sensor
  • •Intermittent problem
  • •Issue causing misfire
  • •Lack of continuity between TMAP connector sensor ground pin 1 and ECM sensor ground pin 49
  • •MAP greater than 18 psia with TPS less than 10% and engine RPM greater than 1800
  • •Mechanical problem
  • •TMAP sensor mechanical connection incorrect mounting or damage causing leakage
  • •Vacuum leak

Suggested Actions

  1. 1Address mechanical problems, vacuum leaks, or misfire issues before using the MAP diagnostic chart
  2. 2Check continuity between TMAP connector sensor ground pin 1 and ECM sensor ground pin 49 and repair circuit as necessary
  3. 3Inspect ECM connector terminals for damage, corrosion, or contamination and repair circuit as necessary
  4. 4Inspect TMAP mechanical connection for correct mounting or damage causing leakage
  5. 5Perform On-Board (OBD) System Check
  6. 6Refer to Intermittent section
  7. 7Replace TMAP sensor

Related Power Solutions, Inc. Fault Codes

242DTC 222122121112132134-BP124135-BP123142
Browse all Power Solutions, Inc. fault codes

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for 131 on your specific Power Solutions, Inc. unit — cited to the OEM manual, not a forum guess.

GET THE ANSWER

Free account required — we'll bring your question with you.