My system has been converted to the R-134a setup about 2 years ago.I did it in October to get ready for the following spring and summer season.The idiot forgot to tighten down one of the connectors and it leaked out.I ordered a vacuum pump with a tee to do either R-134a or R-12.I am going to borrow a set of manifold gauges to do it from a friend.My question is, on the 3.1s,are the only two connectors for the A/C near the condenser?I see the low side service port on the condenser and it looks like the high side service port is a Schraeder valve near the same location.Is there anywhere else that it might be on the system?

Ken

 

Low side is "usually" at or near the accumulator/dryer, and high side is "usually" at or near the compressor.

If you had it converted it should have the R134a adapters on the fittings. Just follow the hoses from the compressor to find them. Should have a blue cap on the low fitting and a red cap on the high fitting.