One of my neighbors apparently owns a small rural Chevy dealership and had his 'mobile service' truck over to change the oil in his boat, and they hooked up my car to a rolling recapture/charge machine. .9lbs 134, but 150# on low side. Compressor not coming on. Hooked a scanner up to it, then 'reset' the control unit per a fax from the MB dealer. No dice. Strongly thinks its electrical-- pressure regulator relay (?), but worst case bad compressor. Going to take it to Richmond, MB Friday.....