The above situations are normal conditions when the active eco system is activated to improve fuel efficiency.
Repair procedures
Refrigerant System Service Basics
Refrigerant Recovery
Use only service equipment that is U.L-listed and is
certified to meet the requirements of SAE J2210 to remove
HFC-134a(R-134a) from the ...
Rail Pressure Sensor (RPS): Troubleshooting
Signal Waveform
...