I have a 2003 3ltr turbo diesel ute that goes into limp mode after being driven for less than afew minutes. whilst the veichle is ststionary it run s fine and does not go into limp mode. we have replaced three engine sensors and checked wiring and fuses to no availe. does the computer on this veichle have a sensor on the spedo or gearbox? also could it be caused by the thermostat being stuck open or shut.