<<this car was originally r 22 so only has low pressure valve. the low pressure psi was 28 psi. the ac shop that that was good low side pressure as according to ac shop low side pressure is good between 30 and 45 psi.>> I think you meant R12 not R22. As mentioned, you need a real AC shop.

That machine you posted does not reclaim. It is only for recovery. You would have to use new refrigerant if you used that machine. And as mentioned, it does not separate refrigerant from oil.

brielly wrote:I'm going to replace the condenser and see what happens. It's pretty easy to do and not too expensive. Thanks!

Why not try getting a condenser from Tim?

Do you have access to an infared thermometer? Shoot the condenser and see if you get to an area that has a big change. A thermal camera is even better.

Airflow across condenser. It is possible the new condenser is bad or the fan clutch.

Measure the input and output of the evaporator tubes. The readings (taken with the same thermometer) should be the same and the output a few degrees cooler) 320 high side at idle is too much. So you may have a defective condenser, fan clutch, missing air dam shields; what ever is causing the high si...

Just for giggles, clamp off the heater core to ensure you're not reheating. You may have a partially plugged evaporator.

Hook up the gauges and unplug the blower motor. The low side should drop to 26PSI. If not bad POA is most probable cause.

I would add 2 oz in each.

You could also purchase a vehicle specific kit with all o-rings. Tim should have them.