1990 SC quit running, turns over,no spark

[hddave]

My 1990 SC quit running, it was running great. It turns over and has ignition power, but there is no spark out of the coil, how can I figure out the problem, the code reader was no help, it said the same the blinking dash light, what and how do I check pertinent components

 

[tbird]

I edited your subject which was too long. It needs to be a brief synopsis. Thanks for posting.

 

[1TrueGambit]

Check your DIS box if it's good bad coil pack

 

[iwishiwashuntin]

How many miles are on the spark plugs? Check voltage going in to the coil and coming out of it. If voltage is good in/out and plugs/wires are good. Could be distributor cap and button are wore out.