Hmmm....I don't know about that....seems like there would be other similar areas, the circled area seems isolated and maybe indicative of too hot and potential failure.  But then again, also noticed another area on extreme right hand side of photo with some burned flux.  Keep both these areas in mind, maybe they are the source of a failed ECU and potentially repairable?...long-shot guess.  Alistair, is it possible to borrow a known good ECU (maybe from friend Simon) to confirm or deny failed ECU as the culprit?  But the question still remains...why did things fail after a bump in the road when entering alley?  Maybe we need Inspector Columbo!!...he was always good at this kind of stuff.  (Actually for me as a bone-head novice mechanic, it's super cool to witness experts attacking the problem from multiple angles.)

    On Sunday, March 29, 2020, 2:45:36 PM PDT, Alex MeVay <alex@mevay.org> wrote:  
 
 Seems fine...just a bit of solder flux that wasn't washed off during
manufacturing.

-Alex, adjusting my shift linkage and taking care of a few rattles today.

On Sun, Mar 29, 2020 at 2:30 PM Alistair Bell <albell@shaw.ca> wrote:
>
> I couldn’t help myself, popped it apart.
>
> What do you think about the circled area? Chip on other side
> https://shufti.files.wordpress.com/2020/03/img_5254.jpg
>
> Alistair