i just got my a/c recharged today. now the stuff that the part store reccommended to me says that it converts my r12 system to a r134a system. the instructions didn't contain any actual conversion only an adapter that went on to the terminal to recharge it. is that right? also the air comes out pretty cold but no ice cold like my cousins car. he has like a 96 or 97 accord lx and his is cold cold and mine is just cold. anything i can do to get mine that cold? thankx for all help.