90 mighty max v6
 

hey i have a 90 mighty max v6 4w4.
same motor as the montero,
im getting no spark at all, started with getting spark most of the time.
now none of the time.
replaced distributor.
replaced ignition coil.
replaced icm.
have not replaced ecu or the little resistor thingy in line with the coil.
where should i check for what else could possibly be wrong with vehicle?
if i ground the solid white wire off the icm i get spark. which means im not getting a signal from something correct? if ther happens to be some magical relay or fuse i missed someone please tell me, would like to have truck for winter.

any burnt caps in the ecm ???

Have not taken the Ecm of truck to look. Geussing something I should do

Ok how do I post a pic of the ecu?
I believe it to be burnt out the chip in the center has black marks all around it.
Anybody have one? Or know where to get?