2.2k ohm sounds about right for 55 degrees, but check it with the engine warmed up, once you get a thermostat in it. Once you install the thermostat, you may see a great improvement since the FI control unit is currently very confused.

A new O2 sensor and a mixture adjustment via the on/off ratio is always a good idea.

Check to see if you are getting voltage to the ICV before replacing it. You check it by pulling the connector back just enough to get the meter's leads on the ICV's pins.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe