2003 Honda CRV A/C issues

Merlin2021
These readings were taken after an evacuation and refill of 134A. I am not a mechanic, did you note that the low and high side readings at 900 rpm were 35 and 200 respectively? I do not know the significance of the 3000 rpm low side reading being 15 psig, but I would hope the mechanic who took them and provided them to me to give to the parts supplier would have noted that that was the problem, if such was the case. He was the same mechanic who installed the parts I provided.
TR

The readings I posted were taken on a 95 degree day, not much choice of temperature here this time of year. The initial repair and recharge took place when temperatures were cooler and when and when I brought the car car back a few weeks later with my concerns the mechanic said he didn't like doing a/c when it was cool outside as it had been before. He checked the charge that day and added some refrigerant and looked for leaks. After that I called the parts suppliers and they said they needed the readings. My wife took the car back about 5 days after I did and got the readings at that time. I'm looking at a printout of the Honda a/c performance test (refer to service bulletin 96-012) that the mechanic gave me with the readings filled in. There is no reference to the 48 psig low side you mentioned. However there is a note to test civec and crv models 98 and later at 100 rpm's or slightly higher. And I cannot verify if that was done or it waas done at 900 rpms to acquire the 35 psig reading. I gave all these readings to the parts supplier and they made no special comment about the 15 psig at 3000 rpm's. It is possible they did not ask for that information, I reallly can't remember. Does any of this information affect your response? I'm not doubting anybody, I'd just like to have decent a/c. And after 2000.00 ( it broke 500 miles from home and couldn't be driven) It seems a reasonable desire.
Tom

I meant to type 1100 rpm's or slightly higher

KHlow2008,
Thanks for your reply.
Today, the mechanic at the bus garage added a little r134A to my system, from the low pressure side. He used the gauge to raise the low side pressure from 15 to 35 lbs. This made no difference in the cooling from the a/c system. Before the refrigerant was added we clamped the incoming line to the heater core closed to make sure that was not the source of the problem, (we used a woodworking clamp with large rubber pads). There was no difference in the a/c output.
Then we had a lengthy discussion about how the system works and the most probable faulty component. He concluded by saying if it was his car he would replaced the expansion valve. He did not have gauges to check the high and low side pressures.
So I went to see the mechanic who installed the final part of the system, and who had installed the entire replacement system last time. (The system failed 500 miles from home, we rented a car, had the parts shipped to a repair shop there, and had them install only the compressor so I could drive the car home and finish the repairs here; b/c labor there was 85/hr and 45/hr here)
After taking the readings today, the mechanic here thought the system had blockage somewhere. During the course of that conversation it became apparent that he had not replaced the condensor b/c I never gave it to him. And I never gave it to him b/c the shop was closed when I picked up my car in Louisianna, and there was a box of parts in the back. I never realized the condensor, as large as it is was not there, just wasn't thinking about that.
So it turns out that everything was replaced except a fouled condensor, which is being shipped to me by the repair shop in Louisianna. "Yep, we got it right here", they said when I called today.
Shortly after the initial repairs were completed and the system was not cooling well, a pressure test had these readings; 95 degrees F, 1100 rpm L-35, H-200, 3000 rpm L-15, center vent 78 degrees.
Today 2.5 months later, and after added refrigerant w/o high side guage 95-99 degrees F, 1100 rpm L-40, H-350; 2500 rpm L-35, H-450; A/C off L- 90, H-250; 5 minutes after A/C on, at idle, L-45, H-298.
Condensor and new expansion valve on the way.
Do you think the original lack off cooling even right after the other components were replaced was due to a fouled condensor, or immediately fouled expansion valve?
The last time the system was replaced the cooling efficiency of the components was not very impressive ( same supplier), but better than this time b/4 it blew.
Seems odd to me that my 88 4runner w/no rear window freezes my wife out when this 2003 Honda can't, and it doesn't take much to make her cold, no pun intended.

The install mechanic surmised the expansion valve just got progressively more clogged this time.
I'm interested in your thoughts. Your response about the Air temp motor control was really thorough. I used that to check out those components earlier, along with the diagnostic test. I didn't do the electrical test, thankfully it wasn't necessary b/c I don't have that equipment or skill.
Again, Thanks for responding.
Tom

KHlow2008,
All new components were aftermarket from Discount A/C. Com
Tom