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Hello when this happened did the engine rpm go up or did it stay the same?
Did a wrench light come on at all?
It sounds like an internal failure inside the throttle body. This vehicle was known to have issues with the throttle position sensor. Usually a wrench will come on though.
I would recommend testing for codes first. If that's ok then I would replace throttle position sensor.
You are correct you can still have a code stored. Warning lights don't come on in all instances. If the TPS sensor isn't replaced it can repeat what it did or go into a limp mode.
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My above paragraph is generalized for everyone. It could have been a fluke you never know. I would drive the vehicle for a while and see if it acts up again. If it doesn't then I wouldn't worry about this.