My vehicle (2.8 Intercooled Turbo) recently went to a Bosch centre for overhauling the injectors and Bosch VE fuel pump.

I don't know what these guys did, but since the vehicle came back from them, I have these dead zones when I accelarate at full throttle. The Bosch guys are unable to solve this problem, since they are unable to pick it up when the vehicle is on the Dyno.

Any suggestions?


'99 Isuzu Frontier (Rodeo) Intercooled 280DT LX