Msd 6al Question

smkshw

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Feb 12, 2010
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hey guys

my car seems to run ok,just when i start it,its as if its firing up late?...not as crisp fire up as i want....so i disconected the original coil wires that hook up to the msd box,and pluged it back in the factory way to see if that helped,but it dosnt start?....shouldnt it fire if i hook it back to foctory plug?.....as far as i remember it used too?

its a 331 stroker thanks
 
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smkshw

5 Year Member
Feb 12, 2010
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no only goes one way?....should work weird?....did my timing its at 14?....any thoughts guys?
 

smkshw

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Feb 12, 2010
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i just dont get it?...msd is disconected?....and its dosnt fire?....hooked back up,and it fires?

the factory plug is giving the signal to the msd box?,should work?!
 

jrichker

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MSD wiring:




Instead of using the battery negative terminal, attach the heavy gauge black wire to the body ground point by the windshield washer filler.

The battery common ground is a 10 gauge pigtail with the computer ground attached to it.
Picture courtesy timewarped1972
 

smkshw

5 Year Member
Feb 12, 2010
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MSD wiring:




Instead of using the battery negative terminal, attach the heavy gauge black wire to the body ground point by the windshield washer filler.

The battery common ground is a 10 gauge pigtail with the computer ground attached to it.
Picture courtesy timewarped1972
the msd works,but when i unplug the factory plug to the msd,and plug it back to the coil,it dosnt start?.....so when its back to the stock way(msd deleted) car dosnt start?
i have the harness i should have said...so if u look at the diagram,i unplug it from there,wich makes the msd disconected from car,then i plug it back to coil instead of msd?
 
Last edited:

smkshw

5 Year Member
Feb 12, 2010
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ok well here is a update if anyone cares....i have a msd coil....i put my stock coil back on and it fired perfectly!...with msd disconected....so i guess the coil was bad and the msd compensated....so thats that!

ps...thats the second msd coil in 2 years
 
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