There is no low side charge port for the 1993 90 series. You will have to take it to a qualified professional to have it charged from the high port. "Schoenly,Michael" wrote: > > All, > > Where is the access point to charge an A/C system in a 1993 90s? > > Thanks, > Michael -- Todd Young 7079 Dawn Ave. E. Inver Grove Heights, MN 55076 651-450-7725