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Thread: 2019 L5P Fuel tank capacity

  1. 02-15-2023 #1
    06TrailblazerSS
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    2019 L5P Fuel tank capacity

    Can the fuel tank capacity be changed and it function correctly? I'm looking at ordering 66 or 68 gallon tank for my truck. But before spend 1K to be able program the truck. Can be done?
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  2. 02-16-2023 #2
    Powerstrokecustoms
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    l5p tanks.png

    yes
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  3. 1 Week Ago #3
    terod228
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    Where can I find instructions on how to update just that single field and write back to the truck? I don?t want to do anything out of order and screw the vehicle up.
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  4. 1 Day Ago #4
    dls0812
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    Do I need to change the sender type? And do I change the primary and primary cap sections? Also my tank is a 68 gallon
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  5. 17 Hours Ago #5
    slimmons2009
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    You will still need to unlock the ECM to do this. If you are paying someone for a file, ask them to make the changes for you. The file they send, you will not be able to view or change. You also cannot read out the file after its flashed to make the changes. The E41 is write only.
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