Sentra B13 16V- gasoline consumption. Empty car?

Good morning, I hope you can collaborate. I have Nissan Sentra B13 16 Valves 1994, 15 to 30 min after turning off is hard on, 3 to 4 attempts. cold or good time after off turns on one. They washed the carburetor, followed the same. Take it to a Nissan technician told me that the carburetor was badly armed, the low thing that the high system was covered, followed the same also the consumption of 40km/gallon under 30. From 55 to 35, the consumption improved but when motor is cold, and when I go at high 60.70 km/hour and I undo the entire accelerator and I hold it so that it accelerates more also pulls, I must accelerate moderately so that it does not pull. We find the mechanic that by one of the emptiness hoses comes gasoline to a sensor that has 4 hoses one of which downloads to the multiple. I think the most urgent is the connection of the gaps of the carburetor. Thank you

It is best to have a workshop manual and connect the empty hoses well, worry about connecting them all again so as not to have problems with power pèrdida, it is clearly your carburetor, investigate that the root problem has not been sphanters or a low octane benchin.

Power problems are always due to a math mixture, therefore it points to the carburetor, find in the vehicle workshop manuals and find the catalog

Friend I have a problem similar to yours when I go with the lights on it is normal but I turn off the lights and it becomes heavy I made it check of the electric and tells me that it is the carburetor to wash it and the mechanic tells me that it can be the brain but I do not know where to do or where the brain is

Good morning, I tell you that I already improved the problem I had. In conclusion:
-He had a tank with super gasoline, to clean the carbon deposits in the bedrooms that generated bells.
-The empty of the carburetor were poorly connected
-under the gas level at the carburetor rate, it was the reason for high consumption because gasoline above the right level was going for admission multiple.
-The mixture of the minimal carburetor and the acceleration was graduated.
-The values ​​of the gum that the carburetor has at the moment in low-high and power are: 105-125 and 35.
Of your problem I might think that you should first verify the vaccum or empty of the air conditioning that increases the acceleration when the air is turned on and second calibrates the revolutions with the lights off. You tell us how it goes.

A cordial greet