Car runs rough and stalls. 03 ford focus code p1299

You have a cooling problem with this vehicle, what happens is that as soon as the engine is running too hot the PCM starts by switching some of the cylinders off to try and control the temperature but if you ignore this the PCM will start cutting out two cylinders at a time and restricting the RPM to 3000rpm only, called limp mode. This trouble code will be registered in the PCM under the code P2199
If you still ignore this the PCM will switch the engine off completely to avoid serious damage to the engine
Have a look at the coolant level, Radiator leaks, Water pump, thermostat, blocked radiator
Hope this will help you

Hi i had that same sproblem on my car solution: change the radiator and thermostat and you want to fill the coolant system with 50/50 antifreze that it. find a good mechanic to it