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My 99 LS 400 seemed to pause for 1-2 seconds from coasting to accelerating, causing a kind of harsh kick, and generally would ignore me when I wanted to go faster.

I just wrote it off as part of the ECT-i's thinking too much.

Now here is the weird part, after a rear-end collision, my driver seat started to click forward and backwards upon accel/decel, which over time got worse and worse until it was crooked.

As you can see in the images, I finally got up the courage to take out the front seat and indentify the problem.

The problem was a simple cure, a Front/Right bolt had wiggled lose and fell to the floor, simply replaced and checked the others and reinstalled the seat.

Now the seat is like a solid piece of steel, as it should, but almost all of my transmission problems have vanished and it has been 2+ weeks since the repair. It seems more responsive and the pause prior to acceleration is gone.

The only thing that made me think, was if the Seat Control Computer under the drivers seat contained something used for the VSC/ABS which fed data to the tranny's ECT?? Maybe an Inertia/Yaw sensor or something..

I know it's a weird question, but I would really like to know what could have possibly solved this conundrum.

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The interior...

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The interior part 2...