So I ended up connecting my WPS to high and low side of HVAC system. Looking for some input now so I can understand this. This vehicle A/C compressor with variable flow control valve and a clutch. My question is why does the low pressure system fluctuation and why is High pressure taking few seconds...

Hi Everyone
Does anyone uses WPS for testing A/C refrigerants pressures, or made any kind of adapter that work with WPS?

here you go