Ok might be stupid but here goes.

I have a MSD digital SCI, blaster 2 coil. Recently my car just started to have a hard time cranking over from time to time. Additionally the car died on me once.

I tried starting the car and it wouldn't fire up today. I noticed that the light on the MSD digital SCI plus was not on. Turned the key off and on for a few times then I noticed the light turn on.

Cranked it over and the car started. Few minutes later during warm up the car died. MSD power light not going on.

Could this be a ignitor failure. I know the thick red and black wire on the MSD goes to the battery positive and negative. Other two wire goes to coil and the last 2 goes to the ignitor wires.

What powers the MSD is the ignitor signal right?

Gonna try changing out the ignitor. Just wanted opinions.

 

This definitely sounds like the ignitor is going bad inside your dizzy. I would also double ground your MSD box. They need a REALLY good ground to work properly.

 

check your connection to your power switched wire(red one) that is the one that turnes the msd on and off the white wire is the only wire that is actually getting anything from the ignitor

the red wire should have power anytime the swith is on(inside dizzy i think it hooks to black/yellow)you can hook this switch input wire to any ignition power source

 

Yeah I swapped out the ignitor and so far so good.

Thanks for the info.