hesitation problem with new tunes pls forward bill

[epowers777]

I have been trying to call php for 3 days friday monday tuesday and called about 50 times so please forward this to bill. I have a hesitation problem. while Im at a stop light waiting when it turns green i tap the gas to take off and theres a bad hesitation. The engine almost wants to die then it comes to life and goes. It does this majority of the time. Twice yesterday in traffic the engine died by hitting the gas then braking cause the driver in front of me. if I romp on it it goes but if i tap the gas theres a bad hesitation. Also im getting horrible milage 15 mpg.
i just cleaned out my ebp sensor so I hope that
helps please let me know i think its a tune problem.