Blazer Vortec 4.3 V6

Everything began when the vehicle reached the workshop to diagnose a fault that consisted that the vehicle drowned when accelerating it in the procedure I realized that the MAF was damaged we changed it and everything also improves the octopus to clean it and try it real of acceleration and after repairing everything remained the same. Nesto helps what can be the cause of this problem ...

You checked the benzine pump pressure if it is Vortec.

Having the octopus is used but when trying it was in good condition and the pressure of the pump was the first thing to check 55 psi

Uhmm 55 psi I think it's like 2.5 bar I remember well you don't remember how much it was in bars?
When they throw benzina through the butterfly it is a pump problem or the injectors are covered

I was seeing and 55 psi seems to be fine but what would be good if you have a machine to take fuel pressure.
Place external pressure to riel and give some + or -60 psi of pressure if it starts with that is a problem with the pump if it would not have to be injectors, the other when you took the pressure did not fall the pressure?