Exhaust trap inlet pressure

Discussion in 'Peterbilt Forum' started by Lastjonezee03, Feb 1, 2015.

  1. Lastjonezee03

    Lastjonezee03 Bobtail Member

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    Feb 1, 2015
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    Can anyone explain an exhaust trap inlet pressure code on a 2012 peterbilt 587 cummins isx15 cm2250? Truck is under 500k, will only do parked regens, displays stop engine lamp until the parked regen is executed. However, parked regen must be interrupted because it will not stop the regen itself. Truck has been in the shop 3 times since December and dpf has been clean. This is not my truck. Just helping a friend. Any information is greatly appreciated. Thanks.
     
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  3. Snailexpress

    Snailexpress Road Train Member

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    Apr 28, 2014
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    Aftertreatment injector is fail or sensors on atertretment system. Need to be checked whit Insite software in forced regeneration mode.
    Go to Rawze .com and watch video how to check.
     
  4. Rayraymafia85

    Rayraymafia85 Bobtail Member

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    Jun 26, 2016
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  5. Rayraymafia85

    Rayraymafia85 Bobtail Member

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    Jun 26, 2016
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    Hi ...i have a cm 2250 which i have made trust worthy discovery....i was also gettin clogged filter codes excessive regens ect... i drilled the dpf and the scr catalyst with 12 holes each 17/32 long shaft drill bit..somwhat away from the temp sensors...has been working fine for me for almost a year now with no problems. .. hope this helps. ..
     
  6. Fincher

    Fincher Bobtail Member

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    Jul 5, 2016
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  7. Fincher

    Fincher Bobtail Member

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    Jul 5, 2016
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  8. Driver4lifer

    Driver4lifer Bobtail Member

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    Sep 28, 2016
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    Got any pictures so I don't drill in the wrong place ?
     
  9. Rayraymafia85

    Rayraymafia85 Bobtail Member

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    Jun 26, 2016
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    Drill the inside honeycomb away from the 12 oclock position on both same deal with the catalyst... Dont get drill bit happy the engine still needs back pressure to run right.... 12 holes will do on both...
     
  10. JKrabs

    JKrabs Bobtail Member

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    Oct 1, 2016
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    Just an FYI, you're drilling into a DPF that costs over 5 grand. If you #### up and bring it to any dealer you'll be paying 5 grand for a new DPF. Also, any truck that enters a dealership with any emissions system defeated will have any engine/aftertreatment work declined.

    The exhaust trap inlet pressure fault code is a fault code typically indicates that the inlet of your DPF is clogged. You'll need to get the DPF/DOC removed and cleaned, the DOC may or may not be bad, and then the shop needs to perform an snap throttle test (to check for excessive soot output from the engine) and test your aftertreatment fuel doser for proper operation.
     
  11. JKrabs

    JKrabs Bobtail Member

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    Oct 1, 2016
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    Unless a sensor failed, of course.
     
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