Ford Explorer V6 goes out

So that you realize if there is a spark you take out a spark plug cable and you try to run to any of the engine there you look at the spark, you can do this with the six, cylinders. It would be good that you measure the mass voltage, I mean with the multimeter measure from - from the battery to any of the chassis this should not be greater than 30mv if it is greater than that, it is missing land in the vehicle, and to verify if it is the fuel because you have