no ignition spark on a 1990 Itasca motor home with a chevy 454 . I've all ready replaced the ignition coil and control module. I've got 12 volts to the coil and tach lead, and 12volts to distributor. the engine will roll over fine but no fire even out of the post on the coil. I don't know what else to do or look for! I even checked the codes in the computer and just come up with 1-2 (12) which I understand to mean no codes and the ecm is functioning correctly. Any body have any suggestions? I'll buy you a coke if it works!
