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This code is for the throttle actuator control which is mounted to the throttle body. Since you have replaced the throttle body, then we can rule out a stuck throttle body. Please inspect all the wiring and the connector to make sure there are no damaged wires because most likely there is an issue somewhere in the wiring. If the wiring is not the issue then it may be an issue with the PCM. Please let me know if you find any issues with the wiring.
I am not seeing that as a possible cause. The code is indicating that the throttle plate is stuck closed, or at least at a lower angle than is being commanded. I would inspect the wiring and the connector very well first.
great. Please let me know what you find. be sure to look it over well.
the damaged wire could be hidden in a wire loom, under tape, etc.
before it wouldn't start, and now after messing with the plug, it will start but runs terrible?
so, did playing with the connector change anything at all?
you didn't see anything with any of the wiring and you looked it over well?
wait, you keep saying throttle position sensor. this is an issue with the throttle actuator control.
no. the little motor on the throttle body. You have replace all that already though?
OK. I still strongly suspect an issue with the wiring somewhere. Did this just happen out of no where? or was it after work was done under the hood on something else?
Ok. Since the throttle body assembly has been replaced, I suspect a shorted wire somewhere. If you have inspected it all over well and there are no wire issues then the next suspect would be the PCM. Unfortunately I don't have the diagnostic information at my disposal at the moment, so I would have to open this up to the other techs so one of them could walk you through the proper diagnostics before replacing the PCM.
when they have their scan tool hooked up, it doesn't act up? only when the scan tool is disconnected?
That makes me suspect a shorted wire even more now. Maybe a bad ground, or something to that effect.
wire issues can be very difficult to track down. Since there was an accident, look over the area of the damage. A wire may have gotten pinched or cut in the area and has had enough of a connection over the past year or so but is starting to short or lose connection.