1lw 3406e

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by 01blackz28, Mar 14, 2021.

  1. 01blackz28

    01blackz28 Light Load Member

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    Oct 29, 2011
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    I have a 1lw that is an absolute dog . Makes 60 psi of fuel pressure at idle and about 80 under load while driving. New turbo non waste gated . Makes 30 psi of boost but it doesn’t pull well. Also please note the truck has about 80,000 on the in frame . I’m at a loss now . The fuel mileage is horrendous . File number in the Ecm is 1708226 .
     
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  3. McMahons Trucking

    McMahons Trucking Light Load Member

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  4. Deere hunter

    Deere hunter Road Train Member

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    Sounds about right on the fuel pressure and the boost, does it have a Pyrometer?
     
  5. McMahons Trucking

    McMahons Trucking Light Load Member

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    If the boost sensor doesn't sense boost pressure you will have the symptoms you are having.
     
  6. S M D

    S M D Road Train Member

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    It might be your file that’s in it.
     
  7. McMahons Trucking

    McMahons Trucking Light Load Member

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    Also could be the atmospheric pressure sensor.
     
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