Injection problem ??? or on ?? or another

Hello everyone:

Well, I took the car to a mechanic (that said) after having it stop Standing, I can't touch the cold accelerator because then it's as if he drown and stops, when he is hot if he accelerates he makes false explosions (I think that in the injection system) and takes time to take turns and then when I release the accelerator it also takes time to lower a couple of seconds.

The case, I have no idea of ​​mechanics, except the simplest, and I do not know if this man has put the order of ignition badly or that it may be, he already told me that the injection system was very complicated and that I would have to go to a specialized workshop if someone could give me some light I would appreciate it, or if you recommend a workshop in Valencia or alr.


Thank you very much and I am very upset

Hello, the problem could be injection or electric.
In the case because of the symptom that gives, in case of injection these would be the sensors that can give you that type of failure, IAT air temperature sensor, IAC valve, TPS, Servodirection switch, air conditioning switch, MAP sensor.
Actuators, fuel pump, pressure control valve, injectors.
Electric failures would be false contact in chips, sockets, short in the wiring.

Deliver more vehicle information, brand, model, year, to help, if the car brings distributor and cables they can be spark plug cable disorder, but with such little info it is a Russian roulette the posting possibilities