99 Grand am gt Sluggish

I dont know what the hell to do, i've been told several things about my car. When i start it it starts to run rough, the rpms are low and it stalls when i try to drive it, it also stalls when i take a sharp turn or when i am at a stop, does anyone know what the hell is up with my its a 3.4 V6, 112k miles and i had a tune up done on it about 2 months ago. i havent checked for vacuum leaks and the mech didn't tell me anything about about it either. also my gas gauge is acting up also it keeps bouncing back and forth

have you tryed new plugs and wires,fuel pump,vaccum leaks,? you can get a can of carb cleaner to spray on all vaccum lines and it will idle up if theres a vaccum leak. other than that you never told us all about what you did and never did..need more info but you can start there...

We need engine type, mileage, when was the last time it was tuned up. Has the fuel filter been replaced. Possible fuel regulator or fuel pump.

its a 3.4 V6, 112k miles and i had a tune up done on it about 2 months ago. i havent checked for vacuum leaks and the mech didn't tell me anything about about it either

Welcome to AF achavez0686 !

As stated above clean the throtle body, might also hav the idle air control- IAC cleaned.
Wouldnt hurt to check for trouble codes too.

Also what type of plugs & wires were used ?