Patton wrote: Spark seen on 2/3 is signaled to coil from 3 o'clock module.
If same signal wire from 3 o'clock module is attached to the other coil, should spark on 1/4.
Sparking plugs from either coil using signal wire from 3 o'clock module indicates the module is okay.
Repeat the test on the other coil using signal wire from 9 o'clock module that does not spark 1/4.
If module is bad, will not spark 2/3.
Good Fortune!
3 o'clock module spark 2/3 and 1/4. 9 o'clock module does not spark even 1/4 nor 2/3, so i´ve sent the part to Dynatek.
Thanks for your suggestions