Runs rough TCS lights and check engine lights turn on

After sitting in traffic 20-30 minutes, the TCS lights and check engine lamps come on. Temperature gauge drops to cold engine races 2,000 rpm's and runs roughly. I have to apply the brakes with quite a bit of force to keep if from lunging forward. Once traffic moves, the transmission seems to not want to shift into 2nd, at first, until rpm's are near 3,000 then will slam into second and again into 3rd. Then all the indicators mentioned go out and it drives normally again. Checked obd2 codes and found only a temperature sensor error code. Replaced temperature sensor to no avail.