Some maybe useless Research for Modules ;)

[darkfa8]

Was poking around the net, found the schematic for the igniton modules and a unpotted one from Duttweiler..

Looked up ways to remove the epoxy or silicone protective coating at Nasa's site

http://nepp.nasa.gov/eeelinks/vol_02/no_03/eee2-3r.htm

Silicone. Methylene chloride based systems are very effective in removing silicone conformal coatings. Several hydrocarbon-based solvents are also used as alternatives. While not as fast as the methylene chloride, the hydrocarbon based solvents are more selective, and where not contaminated by water, will not attack epoxy-glass PCBs, components, metals and plastics.

Epoxy. The complete removal of epoxy coatings for repair is nearly impossible by chemical means. The solvent can’t discriminate between the epoxy coating, epoxy-glass PCB and any epoxy-coated or potted components. However, if done carefully spot removal may be accomplished by the application of methylene chloride and an acid activator with a cotton tipped swab.

So, if it were possible to remove part of all of the coating, would it be possible to troubleshoot and repair GM Ignition Modules?

its late, 3:48am and i'll try to figure out how to take anything apart and fix it at this hour lol

my module is likely fine, but I'm just digging around on this stuff, thought i'd share