Boost control, any output?

[mr2daj]

Looking to add boost control on a spare output on my M4. i am already using AUX1 for Idle which can sink 4amps. The spare output i have can only sink 0.6 amps. Will i still be able to use this output? Is there a specific valve i need that will be low ampage or are they all pretty low? Wouldn't want to do any damage.

To test a valve i already have do i dust give it a permanent live and earth(100% duty) with a multimeter in line measuring amps?

[SprinterTRD]

Have you checked the MoTeC drawings to see if there is a setup sheet for your valve?