2016 PX-9 Exh. gas pressure above max.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by habfleet, Nov 2, 2019.

  1. habfleet

    habfleet Light Load Member

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    Feb 5, 2012
    elwood nj
    0
    Always appreciate any help i receive. Dpf temps around 1000* + doc 700*. Did update the ecm with current calibrations. Ran test 4 times failed 3. I to just dont see another direction to go to. That why i put it out there to you guys who know and have more experience then me. Hate to have a trk come back after i worked on it. Thanks for the help
     
    Goodysnap Thanks this.
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  3. Goodysnap

    Goodysnap Road Train Member

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    Just for giggles you could check the EBP tube with wire or brush for blockage. Pull the sensor connector and check for moisture and pin drag. Throw a sensor at it if you want but its reading fine and in range.

    Tis more likely a turbo issue. Data log the pressure through the regen, does it ever spike or go above 135?
     
    habfleet Thanks this.
  4. habfleet

    habfleet Light Load Member

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    Feb 5, 2012
    elwood nj
    0
    Yes I did clean the tube and put a new sensor on it to see if there was any changes there was not . I think I do remember seeing the gas pressure up around 137 . I'm sending it back Monday and let them use it see what happens . I guess I will need to check the turbo if it comes back. The trk only has 40,000 miles on it .
    Thanks again for your time and help
     
    spsauerland Thanks this.
  5. Goodysnap

    Goodysnap Road Train Member

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    I'd be surprised if there is anything wrong. Probably a glitch in Cummins test.
     
    habfleet Thanks this.
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