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  1. Unhingedaz

    L5P fuel system upgrade

    Thank you! It’s currently at the dealer I purchased the truck from this past Wednesday so hoping they can get it squared away. Called my local Chevy dealer the pump and map sensor are 2-5 days out from what they said. I pulled the map sensor and cleaned off the build as gently as possible...
  2. Unhingedaz

    L5P fuel system upgrade

    P2635- fuel pump flow performance P026D-injection quantity to high
  3. Unhingedaz

    L5P fuel system upgrade

    I got a check engine for nox sensor 1 bank 1 which I replaced and now I got two new codes and from what I’ve read it’s fuel pump and map sensor. I’ve heard there’s been issues with stock fuel pump so just trying to change/upgrade what I can to make as reliable as possible. Not trying to add...
  4. Unhingedaz

    L5P fuel system upgrade

    Just bought a 2017 2500hd and having fuel system issues. What are y’all doing to upgrade and make more reliable fuel delivery?