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Thread: Dtc codes

  1. #1
    New Member jas2012's Avatar
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    Default Dtc codes

    I have a 2012 6.6L duramax with efi live tuner and 5" exhaust. My cold air intake was letting dust into the air intake. I've put my stock air intake back on. Truck through a P2263 code.i cleared the code and truck seems fine. Any thoughts?


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  2. #2
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    Who tuned it? That's a code for P2263 Turbocharger/Supercharger Boost System Performance, sounds like the intake was allowing more air and now the ECM is detecting a difference between expected and actual airflow.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  3. #3
    New Member jas2012's Avatar
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    When truck goes to an idle it throws the p2263 code every time now even though I have put my cold air intake back on it. I had tuned the truck myself around two yrs ago.


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  4. #4
    New Member jas2012's Avatar
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    Run sluggish going down the highway like I'm constantly pressing and depressing the throttle.


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