There is one other possible clue to this puzzle: the computer is also giving me a code 11 on pin 14 of the diag connector. This looks up to be:
-Closed throttle recognition signal to engine control module
-Fuel saftey shut-off to engine control module
Normally I'd say the CTP switch in the throttle actuator is dead, but that ain't the case here. I get this code with a throttle actuator I got from sugnami, and it is still good. So it has to be something else.
I have no idea if this sheds any light on the problem (it didn't for me), but I thought I'd mention it....