msd 8969

[96gtmustang]

i bought a msd-8969 and in the directions it says normally open or normally closed for the gray and yellow wires, whats this mean , im using it on a 96 gt mustang for a nitrous kit. and i dont use a relay for it . i think i use the the yellow wire to the ground of the solenoids . any help would be great

[msdtech1955]

this is a typical window switch hook up. remember yellow supplys ground and the gray takes ground away .
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