What color coil on plug wire is the ground??

[02 Mineral Gray]

I am hooking up the nitrous system an I need to hook the coil signal wire to the ground of the coil pack.

What color is it??

Red or the color with the stripe???

 

[Superhereaux]

red is usually power

what color is the other one with the stripe?

 

[02 Mineral Gray]

I went to Alldata and you are right the red is the power. The other wires that are colored different with a stripe are the grounds.

Thanks,
DJ

 

[MGSTANG]

Why do you need a coil wire for a nitrous install? Digital window switch?

 

[RoadracerGT]

Taken straight from my NOS 5116 Nitrous kit instructions:

One wire of the harness to each coil will have the same color from coil to coil. This is the ignition start/run wire. DO NOT USE THIS WIRE. Use the other wire, which is the negative lead. The negative wire is the smaller gauge wire and color-coded differently for each coil to differentiate their cylinder location and the firing order of the engine. Any cylinder coil may be used, depending on the desired mounting location of the window switch.

I ended up using the 2nd from the front of the car on the drivers side for mine.