Like everyone else right now,
the hot weather (I thought) was making my ISC motor intermittent. Classic symptoms of an intermittent connection- sometimes it'd idle fine, others it wouldn't at all. So yesterday, when it wouldn't idle at all, I popped the connector and metered the motor. And every coil metered at 50 ohms across the legs. Not 30, 50!
Well, that seemed odd, so I put in the spare, and things settled right down. (So far- I'm still not convinced, but that's a character flaw, not a reasoned opinion!)

Anyhow, this ISC is all black plastic, with molded- in 100 ohm (50 each leg) coils, and is shaped somewhat differently than the metal ones. Some numbers on the case, but nothing that looks like a Mitsu #.

Wierd, huh?

BTW, the ECU was rebuilt for an ISC failure...

Toby