Help with 6.2L High downshifting RPMS/idle

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Cleandenali31

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hey guys. Ive had my 07 Escalade 6.2 for anout 2 months now, haven't drove it for month due to having to replace the oil pump. So I figured the truck needed to re-learn itself.
But since I've owned the vehicle I've noticed the RPMs are high when downshifting, especially 2nd gear. Also feels like it throws itself in and out of gears. And when I'm braking it kind of feels like the truck is still being pushed (especially in second) because the RPMs jump up to 1,200-1,500 RPMs before it settles. Warm idle is 650rpms.

I cleaned the throttle body on both sides, never moved the flap because I heard it messes with the programming. And I've cleaned the MAF. Still. Nothing. Any suggestions?! I'm burning gas like hell I'll tell you that much!
 

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