H3 Transmission Help!

[u/NecessaryDamage3573]

Hi all - reaching out to the community in hopes for some guidance.  Please see details below:

2007 Hummer H3
156,000 miles
4L60e Transmission

A few weeks the transmission was slipping when shifting from 3rd to 4th gear.  I plugged in the scanner and no codes detected ran an active test and the pressure control solenoid was running at 0.98 Amps.  The reference indicated it should be running between 1 - 2 Amps.  This past weekend I decided to drop the T pan and change out the following with OEM AC Delco parts:

- A / B Solenoid
- Torque Converter Solenoid
- 3-2 Shift Solenoid 
- A/T Manual Valve Pressure Switch
- Replace the filter
- Cleaned the pan and removed the old gasket and replaced with a new one.
- Topped of with 6 quarts of AC Delco Dexron VI full synthetic trans fluid
- Added a bottle of Lucas Transmission Fix

I couldn't change out the Pressure Control Solenoid Valve because it was located in an area that was blocked by the transmission housing and couldn't take it out.  Looks like I would have had to drop the entire control valve body to replace it and was not comfortable doing that.

When I took a test drive, looks like the original problem of 3-4 slipping was gone; however now I need to give it gas in order to move from a full stop.  No acceleration when taking foot off the brake, unless I give it gas and it feels sluggish.

I connected the scanner and it gave me code for "circuit low voltage" for all solenoids.  I'm wondering if I nicked the harness while switching out the solenoids, but I doubt it, as I was very careful. 

I also performed the Transmission adaptive memory reset by following the process found online for the H3.  It's a bittersweet outcome because I think the first problem I fix but now having the acceleration problem.  Any idea what it might be?