Doesn't look like vac runs through the unit, just power, ground, the associated sensors.

Take a pic, I'd be curious what has been done.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]