MAZDA 323 HS

My mazda does not hold in minimal they have done everything and could not be solved, poet someone who gives me a possible solution. Mod 96

How is the failure, is it injection or carburetor, only fails or turns off, when the fault feels? What steps have you taken to try to correct the fault.

The fault consists that when it is cold you have to step on the accelerator so that it is held, as when it is hot, at all times the accelerator must be treading because otherwise it goes out; The car is carburetor, the car is but constantly accelerating goes out, it does not give minimal. To correct the fault, the carburetor has been lowered to clean, it has been changed packing has been calibrated gasoline level and has been fixed but after two days it continues for it. I don't know what to do...