i was planning on going the wasted spark method. ive been doing some looking and figured out that the purple wire coming out of the pigtails is the command wire these pair up and wire to s2 s3 and s4 on my megasquirt(s2 being spark a, s3 being spark b, and s4 being spark c) black is ground, brown is ground on the megasquirt,and pink is +12V which wires to my harness and has its own fuse. im not positive but it still uses an ignition coil correct? if so how does that work if anyone knows. and yes im in the lower mainland fricfrac i think i got it figured for the time being though thanks. does anyone know a way to control mega with a mac... i dont think its possible without a lot of struggle so im probably gonna just pic up a **** pc... doesnt need to be much to run the megasquirt programs does it? oh nd fricfrac which wires did you pair up or did you do sequential ignition. also how do you wire sequential and is it actually all that much better than wasted spark. thanks for the help sorry bout the a.d.d with the questions