newa6er

Can somebody please tell me the correct value for a the AC refrigerant circuit pressure in line 54 under AUTO HVAC measuring blocks? I think my system is low but have nothing to compare it with.

oaktreelimb

Measure value block 54 field 1 is High pressure sensor reading. The reading depends very much on outside temperature, refrigerant volume, restriction in refrigerant lines, condenser and fans condition, compressor condition, and more ...

with everythings are working as designed and ambient temperature is around 90'F, after running AC for awhile, the reading of around 13 bar is good.

newa6er

Thanks for the reply, is the refrigerant circuit pressure the same as the high side pressure? VCDS was reading like 8 bars at idle and 10 bars at 2000rpm, however, it was 61*, I then put a gauge on the low side and read 16PSI, so even at 61* and even with a crappy gauge that seems low. Ironically this car has a history of leaking at the pressure sensor.