Question on Boxster AC

porsche 996 2000 . ac working but not cold enough. 15 degree difference with outside and not good in Florida. I cleaned the evaporator which was molded , changed blower, changed both fans they are working very hard in Florida checked pressures low 45 high 200 @ ac on low and @ 2000 RPM . I clamped the how water to the heater no difference and I can hear the flaps inside working some time ago the vents have been blowing pieces of foam though.
what else can I do? Flush? renew dryer and expansion valve? or new evaporator? If I renew, vacuum....where do I put the oil in and flushing with what and from which line? reverse or along the flow of the system?

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[Nick at Pelican Parts]

With a low side of 45 I would expect to see the high side about 25 pounds higher. I would check if the charge is low.

- Nick

[Cajundaddy]

Also foam out the vents means your mix flaps are falling apart. There was a DIY mix flap repair from the frunk side on Renntech a while ago that proved effective and far easier than removing the dash to get in there. This is a common problem in high humidity areas.