No spark and i can only get 5V at the coil.

I've run thru this thread kinda late,so if these things have been suggested/tried
already forgive me.
1)are you getting a signal out of the pick-up coil?Disconnect the 2 wire at the
dizzy and ohmmeter the dist PU ,if the reading is in spec.,crank the eng.
and you should see a definite rhythmic variation in the reading.Was much
easier to check w/analog sweep meters,but digi's w/a bar graph work ok.
otherwise you just have to watch the numbers change.
2)pull the coil wire from the dist. cap,get a test plug in the end, then attach a
jumper wire to coil negative. Turn the key to run, then tap the jumper to the
batt. neg. post in a short rhythmic fashion, if it fires a blue spark the ballast
and coil are not the problem.Either there is no signal from the pick-up,or the
module isn't doing its job,due to a poor ground or internal failure.
3)don't feel bad about attacking the halfa** harness, and be sure to check all
the module wires to their destination.It's entirely untrue that your shoddy
wiring could't be the cause of a "sudden" no start,a poor connection works
until time, oxidation,vibration stops it from barely getting it done.Then it's
done.