With 3500 rpm stall torque converter, upshifts doesn`t work because of the stall wall.
It`s known problem with the lt1 pcm.
Do some google search how to fix that and post the working formula.
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You can try this bin.
It`s 94 a4, 3.23 gears, stock file.
Cal id is 16210011 wich is the latest update fix for your vin

Your stock bin information
Vin 2G1FP22P4R2121999
CAL id 16199611
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