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Discussion Starter #1 (Edited)
Need a second opinion here:

I have an 89 CRX Hf that had working AC, not amazing, but it worked. I assume it was R12 as there were no converter nipples going on.

A while back someone hit let head on, broke the radiator and mangled the condenser, but didn't rupture it.

I decided since I was going to have to replace the condenser I would try to upgrade to one of the butane based refrigerants, I chose EnviroSafe R12A industrial, which is supposed to be compatible with everything, a NOS parallel flow condenser (ports sealed and in the box) and this receiver dryer (ports sealed and pressurized): https://www.amazon.com/gp/product/B00FQ0Q30K/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1

Today I started the actual work, had the old coolant drained, replaced the condenser first, then the receiver/dryer. The system was open less than 2 hours on a pretty low humidity day for here, the receiver dryer was probably open at most 30 minutes. Then left it on vacuum on the low side for over 2 hours.

Hooked up the first can of coolant to the low side and started the car with the AC on high, and it seemed to go in ok, but the AC didn't actually start and suck it in. Next can just sat there with the low side up at 110 psi, and no AC compressor. I bypassed the AC pressure switch, and the compressor comes on, but the low side never drops down, just stays right up at 110 psi, and the AC will never come on unless the pressure switch is bypassed. If I open the high side on the gauges it equalizes with the low side, but it never goes higher.

Thoughts or ideas? I am guessing something got plugged, maybe the expansion valve?
 

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Definitely sounds like something is plugged up. It might be worth throwing an expansion valve at it while the system is open - they're pretty inexpensive and it's not too hard to get that evaporator box out of there. It also gives you an opportunity to clean out the evaporator - I recently replaced my valve and it was truly disgusting in there.

Were you able to find a parallel flow condenser that fits the CRX? I had to re-use my old serpentine one because it seemed like the supply of parallel flow condensers had dried up.
 
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