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Automatic Trans Control (4l80e)


exileperformance
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Has anyone setup ecu to control automatic shift functions? I have search a little and haven't found much. I would think it would be a matter of getting inputs and outputs setup, if someone has something I can work off of that would be great or I will end up smoking a few transmissions but I will share the results lol. Thanks for any help.

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I have been running shift solenoid control for a while now (BTR 4 speed), with torque limiting during shifts as I don't bother with line pressure solenoid control. Works great! 

Obviously factory style automatic shifts would be a challenge to set up and time consuming, but setup for full manual control is simple enough.

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I think you could run line pressure based off the map sensor. and I feel like there will be some setup time but I think I can make it shift like stock. the 4l80e has 2 solenoids A and B for first gear A needs power for second all are off, for third B is on and for fourth both a and b are on. The you have the lockup and the line pressure.

 

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4 hours ago, exileperformance said:

I think you could run line pressure based off the map sensor. and I feel like there will be some setup time but I think I can make it shift like stock. the 4l80e has 2 solenoids A and B for first gear A needs power for second all are off, for third B is on and for fourth both a and b are on. The you have the lockup and the line pressure.

 

If this is all you need and assuming you will just be using buttons to initiate a shift then this should be doable with the generic GP output tools. 

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