Hello People,

I have a 1991 Honda Accord and I want to covert from R12 TO R134A. The problem that I have is I don't know whis port is the low pressure one. There is one port near the radiator and the other one is in the back. NOT SURE WHICH IS THE LOW PRESSURE! Can one of you HONDA geniuses help me?

much help is appreciated.

 

The one near the radiator. The low side is the large tube, high side is the small tube.

 

For R134a systems:
Small tube/big sevice port is the high side.
Big tube/small service port is the low side.

Good luck with the conversion, and watch out for leaks.

 

Thanks Guys.