Garage Gremlin has struck again!

[Captain Obvious]

I'm pullin' for ya!! Let's hope that's the end of it!

[Zed Head]

You kind of went backward but still got to where you need to be. Most of the threads I've seen on bad ECU's start with people tapping them to fix them, not make them go bad. But that is the sign. Reflowing the solder joints on the connector pins in the ECU itself has fixed it for some people.

[mjr45]

Just for grins I'm going to dismantle the ECU I removed yesterday and see whats what, I'm a real novice with electrical stuff and reflowing solder joints may or may not be in my wheel house, I was told that when soldering, I do a good job of welding.

[Zed Head]

The common problem appears to be where the wires to the connector bend and poke in to their holes. They flex and fatigue over time. I think that you'll need a magnifying glass to see any cracks.

FastWoman reflowed hers, she might have some tips.