do not simply rely on the little guage provided by the can, the only way to understand what the system is doing is looking at both liquid and vapour pressures. The liquid pressure is pretty important when working with a TXV system.

For starters - tap the heater valve with a hammer and then retest, set the heat all the way and then tap the valve, Do that once in cold setting too.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)