89mustangfive0

when my msd 6a is plugged in the car misses....but when i un-plugg it it runs fine...whats up with that?? thankss

PRO50SC

Either it's hooked up wrong or the box is bad

89mustangfive0

no its hooked up right....used diagram and everything i've had it on the carrnow for almost a year... i noticed the car would run funny especially when i would make a turn from a dead stop the car would take off funny....so i un-plugged it and it ran fine

PRO50SC

Is the box new?

89mustangfive0

noo i got it from my uncles friend for free so i cant complain...

PRO50SC

Maybe that's the problem right there.

89mustangfive0

will msd fix it? is it worth it?

PRO50SC

No idea, you'll have to contact them

89mustangfive0

ok someone told me also that problem i had from a dead stop could have been from a bad coil..is that true??

jrob113

Let me add to this mystery... Mine started this weekend. it will crank run fine. Then the next minute it will not do anything. then sometimes will sounds like im not getting fire. WTF!!! It makes it own mind up everytime I turn the key.

Dropped my lil girl off at a school function on the football field. When I pulled up all these guys were stopping me and asking about the car. So I pulled up and turned it off, got out for a few minutes of head swelling praises. (let me add my tag says FINDOUT) When I got in it, the dang thing would not fire off. Man I felt Like an idiot. Yea I found out alright. I found out the damn thing wont crank in front of about 1500 people. I tried to be sneaky and wait until everyone left the function b4 I messed the it. 3 hrs later I called a ROLLBACK.

I am building a BOSS 347 w 205 AFR heads. Should be done gathering parts in a month or so. I am just going to pull this motor freshin it up and sell complete minus a POS 6A. Any takers!!!