i have a 7mgte and i am having a similar problem but only in 5th gear when i slam the throttle to the ground. it wont do it if i lightly get into it into boost then i can go all the way to the floor but if i snap it down from a cruise then it will buck and send a check engine light.
all the other gears i can slam them and have awsome power but 5th gear is just sensitive.
i checked the resistance on the tps and it is all good. i guess i need to try and see if i can pull a code or something. it feels like a miss fire or something but only in 5th gear.
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