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Thread: Fuel Pressure Swings 2013 Silverado 5.3L Flex Fuel

  1. #1

    Fuel Pressure Swings 2013 Silverado 5.3L Flex Fuel

    I noticed that the fuel pressure on a 2013 5.3L truck drops from 58psi to 40psi as soon as closed loop enables. Is there a way to disable this without disabling closed loop?

    Truck is a Stock internal 5.3L Flex Fuel
    60# injectors at 3bar
    Precision 74/75 at 8psi
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