VLAVULA IAC AND TPS Sensor

Hello everyone, I have a big problem, buy an Elantra 1.6 93 and the truth is that it works very badly, it costs you a lot to leave and when it does the engine tends to stop immediately. The idle is super unstable when stepping on the accelerator does not respond immediate Friend says that it can be the acceleration body that is damaged. Tell me something please I am desperate help !!!!! PLISS !!!!