Quote:
Originally Posted by prodjay10
I was under the impression that the ecu control of the tranny only matters if it’s automatic. Otherwise just don’t connect the tranny to the harness and remove tranny codes with a tune.
I’ve also read an Auto tranny will give you 20mpg or so with a 5.3 so long as you don’t stomp on it. That’s great mpg in my opinion for a truck.
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Yeah, you can change anything in the tune but after spending so much money on tuning/harness/ecu's I would like to keep peoples hands out of it as much as possible is all I was getting at.