A Freon system on a 1993 Honda Accord uses a valve on the A/C hardline where a user can connect a A/C refill can. Following directions on the refill bottle will show how much Freon is needed to pressurize the system.
You add freon to the a/c by using the low side, suction side (larger hose).............
Because they no longer use freon.
'91 Accord. If you are still using r12, its gonna cost about99 bucks a can. You'll find the ac fittings by the dryer (left front?) Dealers can install a conversion kit to the new freon for about 45 bucks, and the new freon is obviously much cheaper
You add freon to the low side fitting,top front,on the ac compressor
You call a licensed contractor and have them check your system. If they determine that it needs freon, they can add the right punt.
R12-if it has ac of course.
Freon is added through the ac low pressure port. The port is located on the aluminum pipe on the ac line.
With the Freon and gauge connected to the low side ac port, start the engine. Turn ac on high, and add Freon till the gauge shows full.