MSD WIRING

[71cudda]

CHRYCO, YOU HAD SAID IN MY PREVIOUS POST THAT THE BROWN & THE BLUE FROM THE HARNESS SHOULD BE TIED TO THE RED SWITCHED WIRE FROM THE MSD. THE WAY THE CAR WAS WIRED BEFORE HAD THE SMALL RED WIRE FROM MSD BOX SPLICED INTO LIKE A 8 OR 10 GAUGE WIRE RUNNING TO POS TERMINAL ON BATTERY  THE BLUE WIRE W/ PLASTIC CONNECTOR & THE DOUBLE BROWN W/ PLASTIC CONNECTOR SEEMED TO BE JUST UN-USED DOES THIS SEEM ****** UP

[nivvy]

In my challenger I have the red msd wire tied in with my blue wire coming from the harness....   

[71cudda]

JUST THOSE TWO WIRES AND NOTHING ELSE RIGHT. BECAUSE THATS WHAT MY MSD DIAGRAM SHOWS

[nivvy]

All I have is the red msd wire tied into my blue wire from the factory wiring... yes those 2 wires...

[71cudda]

THANKS

[nivvy]

I am running a msd pro billet distrubtor with magnetic pick up...

[71cudda]

ME TOO

[nivvy]

I am postivive 100% sure I only have mine tapped into the blue wire........... 

[71cudda]

YA MY MSD MANUAL SHOWS IT GOING OUT IGNITION [ORIGONAL COIL + WIRE, IMJUST NOT SURE ABOUT THE BROWN WIRE THAT CHRYCO SAID TO TIE INTO IT BECAUSE ON THE OLD HARNESS THERE WAS A BROWN TWO WIRE CONNECTOR BUT IT WASNT HOOKED UP TO ANYTHING

[Chryco Psycho]

hooking it to the battery means it is always on & will kill the battery
the blue wire at the ballast is ign run & the brown is ign start , if you do not tap into both the car will either crank & not start or it will start until you release the starter  & quit

[71cudda]

just to make sure i am exactly clear,you are talking about the blue&white and the brown two wire should all be spliced together with the smaller red msd  wire and i can lose the wire that now goes to the battery

[Chryco Psycho]

there is a Dk Blue wire at the ballast but the Lt Blue wire is 12 v power to the ECU & will work also

[nivvy]

there is a Dk Blue wire at the ballast but the Lt Blue wire is 12 v power to the ECU & will work also

okay I see what cp was telling you know.... I just straight wired mine into the light blue wire under the dash...

[shatar4]

So if the blue/white and the 2 brown wires are hooked to the small red wire on the MSD box, does the large red wire still get hooked to the battery or is it no longer needed?

[shatar4]

So if the blue/white and the 2 brown wires are hooked to the small red wire on the MSD box, does the large red wire still get hooked to the battery or is it no longer needed?

bump