Engine failure

Question

The engine explodes when it accelerates suddenly, and loses force when climbing a slope. When buying it did not have the catalyst but it did not fail only to be in low speed it gave a failure it slowed to 450rpm and soon it stabilized. I replaced the fuel pump and cleaned the tamque, I made a test, when I accelerated I put contact cleaner in the filter and accelerate immediately, but I do not know that it can be

Answer 1

You can be starving for fuel volume as well as the fuel pressure. if the fuel pressure is low ,

​ Here a typical fuel pump ,

 what happen here is the fuel feel line had a ruptured hole this caused low fuel pressure/volume