Permanently removing fault codes from the engine management system is a very useful process when modifying to enhance the performance of a vehicle. Removing components such as swirl flaps, EGR valves, other modules for purpose of performance modifications or motorsport will often cause a DTC fault code to be stored in the ECU memory along with illumination of lights on the dash and limp mode activated. By recoding the ECU data and permanently removing the specific fault code we can prevent the dash lights from being displayed and prevent the vehicle from entering limp mode.
DTC (Diagnostic Trouble Code)
P Code (Powertrain Code)