Originally Posted by tekgnos

I bought one of those conversion fitting systems but it still wouldn't work out, even though it said it works with "all cars". Perhaps I am trying to add the refridgerant to the wrong valve....

When recharging you add the 134a with the car running and A/C on correct? And you add it to the "low side" which should be a valve in between the compressor and the evaporator, correct?