Engine light Camry 2003 V6

Hello !
I’m having a problem for few months now on my 2003 Camry, when I drive on a slope, when there is a gear change or when I try to accelerate a little hard or I go up in the revs , I feel a kickback in the car when the gear change and the engine light comes on. and in all the same situation the engine shakes a lot when up in the revs, I’ve changed my engine mount recently thinking it was connected but still the same problem. I’ve checked my transmission fluid, my sparks and everything looks alright and having no leaks. I was thinking a transmission problem at first. If anyone had an idea as where to look at first and what would be the problem linked to that it would be amazing.
thanks for the update!