Hyundai AtoZ 1.0 year 2000 problems

Friends I have problems with a Hyundai Atoz 1.0 When you reach the fourth it does not accelerate more than 90km/h with the thorough pedal Elscaner does not yield codes I clean the pond change the fuel pump and nothing
the last thing I did was advance the distributor and reach 100 km/hy from there it does not pass no matter how much the accelerator

Look I think the problem is in the fuel system reviews fuel precion on the ramp and makes a cleaning of injectors and change of fuel filter The precion has to be in the environment of the 2.5 kg I hope it serves you

I did the cleaning of injectors and nothing