Thanks for clearing up a point of confusion, David. Yes, it is of course OBDII. When I retrieved the code, the universal description was "temp sensor wiring fault," or something to that effect. Yet, in going through the Faq and searching for related posts, all I found were references to 115 and fuel injection. I then thought perhaps the universal descriptor was wrong and that, in fact, it might be fuel injection related, and especially because of the engine hesitation that accompanied the check engine light coming on. I'm going to guess that was a red herring.

Anyway, thanks for the clarification. I'll double-check sensor leads. I've cleared the code and it hasn't returned. I'm relieved to know it's not a fuel injection issue! Thanks, as ever, to all who responded.
Regards, Richard