I think it's consistent with what I got - more voltage reduces the idles speed. I would expect that battery voltage would kill it.

I disconnected the ICU before connecting the transformer.

As I recall, the inputs (at least on the 107) are AC compressor, coolant temp >50, and the tach input from the ignition module.

__________________
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