The accelerator is very hard to push. It is o.K. A new cable was installed and the "foot-feed" is o.K. Attached to the EFI housing are 3 cables. One is the accelerator cable and it's new. I don't know what the other two do. On the side of the EFI unit housing is a spring and a metal plate on to which the three cables are attached. Is the problem with the EFI unit, the spring or one of the other two cables. Truck runs fine but one frrequently "burns out" at an intersection because the accelerator is so hard to push. Appreciate your suggestions.