What is normal pressure in air conditioning?
 

Obviously I talk about low side. I just read 35 psi at temperature 85 F. Gauge said it is normal range but some table said at that temperature should be at 45-50 psi? Another table said it is normal again. So how much one can of r134a 12 oz (smaller one) add pressure to Acura system? To me look as system is working properly. Maybe can be better with one more can?

35psi is on the high side of normal for 85F.