I want to start off by saying, I know what I am doing is not "correct" or right, or even a great ideal. But my truck has a reman engine in it that clatters like a 12v cummins, and in need to blow it up before warranty is over. I have a 2000 Chevy suburban 1500 5.3 4x4. I am trying to make a "race mode" tune where the truck will up shift as late as possible and down shift as early as possible very much like a video game. I have all the shift points set up how I want them and it shifts correctly. But the issue I am having is when i let off the throttle the engine will drop to idle, then when I get back on the throttle the engine will free rev back up to where it was. Is there anything in the tune that i can change to have the truck hold gear on decel so I have engine braking. How does the transmission do it when you manually down shift? Thank you everyone who can offer any advice.
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