บริการไฟล์ลบ DTC

Diagnostic Trouble Codes (DTCs) are stored by the ECU when it detects a fault or out-of-range reading from any engine sensor or system. While DTCs serve an important diagnostic purpose on stock vehicles, they become problematic when hardware modifications have been performed that intentionally change or remove monitored components.

After removing a DPF, EGR valve, catalytic converter, or other emission components, the ECU will continuously log fault codes and may activate the check engine light, reduce engine performance, or trigger limp mode. These fault codes cannot be permanently cleared with a diagnostic tool because the ECU will re-detect the missing or modified component on the next drive cycle.

Our DTC removal file service permanently deactivates the specific diagnostic monitoring routines that trigger unwanted fault codes. Rather than simply clearing the codes, we modify the ECU software to prevent the fault from being detected in the first place. This provides a permanent, clean solution with no recurring warning lights.

We can remove fault codes for virtually any deactivated or removed component, including DPF differential pressure sensors, EGR position sensors, NOx sensors, lambda probes, catalytic converter efficiency monitors, swirl flap position sensors, and secondary air injection systems.

Each DTC removal request is handled individually. Simply provide the list of fault codes you need removed along with your ECU file, and our engineers will deactivate the corresponding monitoring routines while preserving all other diagnostic functions.