very strong heating in the engine

Hello to all the experts, in the automotive theme, my problem is as follows, with Mitsubishi Lancer 2004, 2000 engine, automatic, when I go on a normal plane without air and with air conditioning on the temperature of the refrigerant is running well, at the indicated one, now when I am in an extremely strong traffic tail, or when I go in long climbs, it heats up a lot until I almost reheat, or when I am very Air on, the thermostat, temperature sensor, and radiator cleaning, but the problem persists, what could it be? Perhaps I have burned the cuisine's packaging, that would stop last option, another doubt is that when I turn the air the fans work at low speed, is it that the module that controls the speed is bad?

I recommend you put the fans directly and if your problem is solved, change the relays such as variable speed there is the problem and check your computer codes to know which module is damaged and see a step to you so that you do not spend on Valde