On Thu, 17 Mar 2016 10:08:49 -0000 (UTC), Cursitor Doom
wrote:

On Wed, 16 Mar 2016 22:50:06 -0500, legg wrote:

Looked to me more like dye concentrating as the curing epoxy puckered.

So not likely to cause a fault then?

Must have been pretty strong stuff, to strip colour out of the mask,
but no, not a conductive path.

Did you ever reset this thing, while it was still in the vehicle?

No. I think if the fix were that simple the service specialists who
swapped the unit over wouldn't have gone to the trouble of sourcing a
replacement. They charged me next to nothing for the job so I trust them.

?? Just charged you for the ECU, that they happened to have lying
around? Very obliging...

If you trusted them from past work, that's another thing entirely.

RL