Thread: Car starts and stalls worse with throttle

K finally all coolant leaks are fixed LIM UIM and TB gaskets installed properly.....Now the car starts revs up and sputters out and if I give it gas at all while it is reving it stalls right out...Any idea what the problem would be??? Im leaning towards a possible Vacuum leak or one of the sensors????? also sometimes when it stalls out i hear a loud puff and a tiny bit of smoke comes from the tb

The lifter valley? If so yeah.