Hi,

I discovered that the black hard plastic vacuum line that comes off the aircleaner box does not go anywhere. I went to the junkyard, but all the S70s there were disassembled, or were missing that line.
Could someone tell me where that line goes? It's next to the white hard plastic line that goes to the area by the idle air motor.

My A/C is still giving me fits. It is properly charged, but the ECU won't turn the compressor on. It cools fine if I jump the AC relay connections.
The low pressure switch by the firewall works fine. There is a pressure sensor by the low side port, I tried 3 used switches, so I assume that is not the problem.
Any other ideas before I replace the ECU?
Thanks,

Csaba