Ok, no spark, has momentary power at the B+ terminal at the coil as per the manual and then momentary power again while cranking. I had the ECM disconnected and now it has a flash code of 12, no 12 is listed in the manual I am using. Once again its a 1990 3.3 Caravan but my only 3.3 manual is for a 93 Acclaim.
The thing is everything seems to be intermittant, once I detected constant power at the coil B+ while cranking, I then reconnected things and it cranked like the timing was off, fired and ran poorly till it died. Now nothing again, any ideas??? Any spots in harness that may be prone to issues?

MOPARTS ALERT!: Chris Pugh aka gabodyman of Dalton, Georgia, cashed my $140 money order on 4-16-02 never sent parts. On 3-19-07 he agreed to return my money; "april 9, it will be in the mail by that date""will do as promised. chris" Still no parts and no money!