Slush Box Skulduggery.
4r70e/4r75w transmission hack - (project index) 2004-2020. Doc J.Vicious & Murph-O-Minion enterprises. Godfrey, ON.
Content may be used on the condition that the original author be clearly credited.
Last updated July 10, 2020.
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Part I - Setting the stage.

Preparing the White Trash CVP for our home brew stand alone transmission controller.

July 2020.
Part  II - Sniffing.

Reverse engineering - A look at the various signals from the factory ECU and assembling an
operational truth table.

Part  III - Digital Gear Indicator Circuit.

A working proof of concept - Interfacing a digital display to indicate which gear is selected.

August 2020.
Part IV - Paddle Shifting Circuit.

Sequentially selected gear changes.