Progress on the test harness has moved faster than my blogging. ?
I'm excited - harness complete and used to test three OEM cold start timers. One works. The other two have peeling solder traces. Fixable but I won't spend time right now repairing them - once one spot is fixed its only time before another bit pops up.
Super interesting to see the behavior of the system. I'll document it so that folks know exactly what is happening when you turn the key. Have to say it's different than what I expected.
With a proven test harness I feel confident soldering up my next attempt.
I also have a video I'll upload so that you can see it in action.
This is progress!