2011 Mitsubishi L200 2.5 Logo

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Anonymous Posted on Jun 01, 2016
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Engine 4d56 loose refs and go to idle

Have the 4x4 mitsubishi L200 2011 model with common rail fuel system. While driving at 80 to 100 km/h the engine suddenly loose power and the engine goes to 950 rpmidle When put in neutral and push the accelerator pedal the refs go back to normal. Sometimes have to stop and switch of the engine and start it again. Then everything goes back to normal. There is no fault codes showing. Have cleaned the EGR valve by removing all the carbon. Engine has done 127000 km.

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  • Trentan Franz
    Trentan Franz Jun 01, 2016

    Hi Anonymous, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? Have you considered that the engine has a speed governor attached?

  • Anonymous Jun 02, 2016

    I did not look at the speed governor because of the refs between 80 and 100 KM/h is 2000 rpm to 2500rpm. Can you explain how to check the operation of the speed governor. What I have done with another car was to change the complete accelerator pedal and sensor. There was no engine light showing but the problem was solved

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David Harrelson

David Harrelson

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  • Mitsubishi Master 5,456 Answers
  • Posted on Jun 02, 2016
David Harrelson
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If this is a fly by wire throttle, pedal assembly may be failing.

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