Chevrolet Luv 09 C22NE Acceleration Failure

Hello friends, I want to ask you please tips and ideas to fix this problem, my Pope has a Chevrolet Luv year 99 2.2CC. We have little adjusted motor which did not throw failures, but now the truck began to fail, she is going well but for example when reaching a weekly and vaver to accelerate, it loses strength wanting to go out and makes explosions in the escape and so that it will come On check Engine a truck we change the MAF, TPS sensor and fuel filter Any idea or experience would be appreciated greetings.