I just realized something... it depends on the type of driver, no?
A parallel port should have a totem-pole-type output driver, so it shouldn't need a pull-up resistor. You do need to limit the LED current, though, and a 1K resistor would probably be appropriate. Maybe that's what you meant though.
I forget how the ECU's output works... I don't think it's a totem-pole. In fact, it might be an open collector NPN transistor with a pull-up resistor. If it is, then you might need to take the pull-up resistor's value into account. Or you could just try doing the same thing with the 1K resistor and see if the LED's bright enough. Or you could have the LED turn on whenever the signal is low rather than high, but then you need a power source.
Yeah, I'll try stir-frying the tenders like you recommended.
By "tandoori style" I just mean I'll season it like Tandoori chicken. The marinade will have yogurt, onion, garlic, ginger, turmeric, coriander, cumin, etc. And red food coloring, of course.

"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212