HELP cars running funny

hey guys my 2001 GA SE is running rly funny as of late. when ever i start it and drive it for a bit my abs brake service engin soon and tac light comes on and stays on.also when i'm crusing @ about 80 km/hr and give it gas it starts to chug for power. i'm thinking its a sensor thats going or if not has gone. i'm just wondering if anybody out there know whats going on.

What engine and how many milesss ?????????????

You will have to get your car scanned with an ABS capable scan tool, no other way to know exactly what's wrong.

3.4L v6 with 106KM on her