what causes it to shift high when going into 2nd gear then finally shifting

my 2005 ford mustang automatic is having a
lot of problems. For one, when I try to go from
first to second gear the rpms will go from 2 all
the way up to 4 then down to 2 and finally
shift into second gear. I just had it run through
a diagnostic tools and these codes came out,
“code P061C indicates a fault in the Internal
Control Module Engine RPM Performance”
Error codes read: “P061C Internal Control
Module Engine RPM Performance, P0745
Pressure Control Solenoid A, P2106 Throttle
Acutator Control System - Forced Limited
Power, and P0446 Evaporative Emission
System Vent Control Circuit”