I was having the rough shifting as well - replaced the neutral switch as St. Charles called it. That and a transmission flush fixed my issues. Shifts very smooth and is responsive. Also want to mention there is a wiring bundle that comes very close to the exhaust. Make sure it's tied out of the way. Had some melted wires as well which got repaired - could have been causing a short or incorrect data to the computer. Pictures attached. If your going to keep your VX i would have this replaced. I always call St. Charles for parts - they always seem to be nice and helpful.
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