340 Pinging using 94

inertia said
How bout a video, - cuz we all have our crystal balls, and magic 8 balls out for detailing, - so some ... help is needed.
We're 40 posts in, and absolutely no farther ahead, cuz some are assuming you actually know what "ping" sounds like .
Vehicles don't ping decelerating.

I can take a video.

For the "Vehicles don't ping decelerating", why is that? The engine is still firing while decelerating, it's just doing so at a lower RPM. And if the detonation is now occurring at a lower RPM after retarding the timing, I don't see how it's out of the question.

Now I could very well be wrong, and I am not using experience to justify my thoughts, just logic.