Problems with Mazda Allegro 1995

A cordial greeting
I commented a Mazda Allegro 1995 car 3 months ago and when the inspection went to pass, I do not pass through synchronized, gases, take it to the lubriceca and they told me to buy Guayas Bujías straps, and then told me that the MAF sensor was bad, before it did not go out in the Scaner now if after washing the injectors ... I took it out of there and take it from there and take it from there and take it from there and take it from there and take it from there and take it to you They went down and uncovered a butt and now they say that it is repaired ahh if someone could collaborate or guide me would appreciate it in a few words, one says that it is the sensor and another that is engine ???

If it is a sensor, check light, if it is MIDES Compregion engine and it must be different in the cylinders or equal to all but very low, so you will leave the doubt

Thanks Kikecmec for your help. The compression goes well and no light is turned on ... the car is still in the workshop, I don't know what else to do?

Friend can be the MAF but they must be safe ...
they must put an oscilloscope and take reading the voltages in Elta and in low
revolution

Fredy a thousand thanks Mira commented to you, the Scaner was connected and I did not show the failure and when Guayas spark plugs changed and the injectors were connected again the Scaner and reported failure in the MAF..HOY it took again to the gases and after changing the cylinder head and that the parameter climbed the parameters the gasoline passes directly in 250 the car is not supported. Tomorrow I will scan to see if the sensor comes out but when putting it and disconnecting it, it shows that Mazda Allegro 1995 does not show me any light or anything that I do? how to ensure that it is the sensor I do not want to lose more moneyoo! A thousand thanks for the help