2012 Prius B1473 P0108 P0102 P0113 P0121

So new to car JDM engine was installed by a regular mechanic garage @ 217k miles
Now there's a constant P0108 that refuses to die and a B1473 as well.
Now granted it looks flawlessly installed and they used every bolt, clip, and retainers stuff I'd toss aside because they are pointless.
But I believe they disconnected the A/C to install where I do not and refilled themselves so now there's a constant B1473 and yes ( I checked the inverter fuse) it's fine voltage is good.
Possibly overfilled 134a ruining the A/C compressor?
As far as the P0108 a new sensor won't clear it.
As soon as I clear the DTC the code magically reappears as soon as the car is powered up.....ideas?
I'm getting 5v at power up but showing negative atmosphere pressure that refuses to budge
Map pressure remains unchanged at all times at 21psi idling or at driving.
And a whole other slew of P0102 P0133
P0121 that refuses to clear even after removing the negative terminal on the 12v
Am I looking for a ground isolation fault from a faulty inverter or am I chasing a bad ground in the harness?
No intake or vacumn leaks.
Car does idle and drive flawlessly minus the A/C not working
Hit me with your ideas?

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