went to fire my 555

[1970chevy]

went to start my 555 i got no spark i am running a crank trigger with a msd proggable 6al-2 box msd blaster 2 coil i shorted out the green and voilt wire from crank trigger i have spark from coil wire then when i plug it back in i go to #1 pull wire off get some one to trun it over and theres no spark . then i went to test power from coil and no power then i pull crank trigger wire off short it out i have power

[Marv D]

Have you phased the distributor with the trigger? It couple be firing but just not out the wire you think it is.

[1970chevy]

no i havent phased it yet thers no spark at all i pulled the coil wire off if i jump the green and voilt wire from the box togther it will spark soon has i plug the crank sensor in i lost all spark when its un plug my red light on the msd box stays on soon has i plug it in the light blinks 2 then goes out 6530 box

[Marv D]

Sounds like the crank triger is shorted somehow,, maybe the pickup is bad? Sorry, but a call to MSD may be your only avenue of real thelp. Oh, havent checked, don't they have a troubleshooting checklist on their site?

[1970chevy]

i called them and no help i check my sensor it read 75ohms if its sparking when i short it out the box and coil are working ill try change the sensor i moved the sensor in front of the magents and i had no spark i dont get it every thing is brand new thanks for your help

[regan wilson]

I dont know anything about the digital boxes . You do need to phase the dist before you try to fire it though . I use an old cap with a big hole cut out by the #1 plug wire so I dont have to drill a hole in a new one .

[combustion]

try this site. maybe it can be of help

http://www.msdignition.com/forum/index.php?

[1970chevy]

thanks for your help gong to try a new sensor on sat see if that helps

[1970chevy]

i just put a new sensor and nothing i have no spark i phazed the rotor to crank trigger i have noideal whats wrong does any body know if the led light on 6al-2 box is supposed by on when you but 12volts to it mine is just blinks 2 times and thats it

[shortbed70]

Sounds like something in the box is wrong. See if you can borrow another box and try it.

[djracer]

what kind of trigger is it? what dist you got. I just put the regular 6al2 in my buddies car and we had trouble with a bad pick up in the dist. do you have an old 87 to 95 chevy truck dist laying around. If you do take the module out and crimp the two wire plug onto the mag pickup wires in the base of the distributor and try using that dist to trigger the box?

[1970chevy]

i am running a msd crank trigger 8620 with a programmable box 6530 and pin 84697 dist i look at my dist i have no electric wries out from it i pulled the cap and rotor off and theres nothing under it it sealed with black round thing in their thanks

[1970chevy]

im getting closer now its starting to back fire i put it on num1 tdc on comp stroke then i had the timing mark on 36 deg tdc and i have the pick up lined up with magnet and the pick up arm is in the center of the slide . I been trying to move it up and down the slide to get it to fire but it just back fires through the carb thanks