Now the thing is running barely when give it gas, it died on me in middle of intersection. I start it back up immediately and zoom off without a problem.

could the ecm be going bad? This isnt an intermittent problem, this is now chaos.

I disconnected the TCM and shifted it manually, the vehicle engine still bucked/surged under acceleration. Same with air temp sensor disconnected.

For a while, the R. ABS light came on, and the brake light too. After I disconnected battery and reconnected it those went away.