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  1. Mtriplehorn

    99 Escalade fuel gauge issue 411 swap

    Hello, First post here, hopefully in the correct spot. I have a 99 Escalade with a 5.7 Vortec. I have swapped the "black box" with a "411" ECM. Truck has been tuned & runs good. My fuel gauge is erratic. While in drive & moving the gauge is reading empty. If I come to a complete stop it reads...

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