jeep Grand Cherokee Coil Negative

[Nenenaiad]

Hi,

Does anyone know the wire colour of the negative side of the coil , so that I can pick up the engine rpm reference,for a Bigas sequential installation.

thanks

Dave

[zs&tas]

cant help imafraid except that cherokeeforum.com is an awsome site with tons of info and people traffic with info, cant count the number of times i used it when i had my 93 4.0 cherokee.
good luck !

[tubbs]

Dave, how did you pick up which wire was the injector pulse wire that you had to cut into ? Did you use a meter with a tach function or a power probe ? I would use the same peice of equipment because you can't trust wiring colours to be the same.