HEI in Mopar ECU casing
What is scary is the Chinese, knock off chips that do not work. Parts are laser branded, so they look correct. ............ the lowest cost parts
Before he left us, my old engineer buddy told me a story of a project he worked on, by a co. that is now gone. They designed this board, and it turned out the clock was somewhat critical. "Off the shelf" clock modules were not dependably within tolerance. So they contracted --and it turns out-- with a Chinese company, again, that old "lowest dollar" to have modules selected and marked specifically.
It turns out...........that all the Chinese did........was to mark a bunch of modules. They didn't actually test and select them, they simply MARKED them and sent them back. Once these got into production, it turns out to have had about a 30% failure rate, but worse, this was "in the field" "after install," as ambient heat/ cold affected them, along with normal issues, electrical, etc.
Of course this was all done in the "vacuum" between the bigwigs, the engineers, production, etc, all insulated from each other.