intermittent spark from coil wire to ground & no spark to any of the plugs? Correct? start by checking the reluctor gap (want .008" at rest). Confirm that it is wired correct & the coil is being fed thru the ~.5 ohm half of the 4 terminal ballast & as you noted the other half to the red/green ECU terminal ain't used in a 4 pin ECU app. that'll get us started