ECU Tuning Options for Bmw F26 X4 3.5i Bosch MEVD17.X

NOX OFF

By deactivating the Nitrogen Oxide control system, this option reduces strain on the engine. It enhances performance, ensuring a more efficient and powerful drive.

Stage 1 tuning file

This is the initial level of ECU remapping, designed to boost power and torque. It optimizes fuel efficiency and performance without the need for any hardware modifications, making it a popular choice for many.

Full Decat/Second Lambda Deactivation

This tuning option removes the catalytic converter and deactivates the secondary lambda sensor. The result is increased exhaust flow, improved engine response, and a more exhilarating driving experience.

Speed limiter/ Vmax modify

This tuning option allows for the modification or removal of the vehicle's top speed limiter. By adjusting the Vmax settings, drivers can experience the full potential of their vehicle, ensuring optimal performance on tracks or specialized environments.

Throttle Valve TVA Disable

This tuning option deactivates the throttle valve actuator, enhancing throttle response. It reduces lag, providing drivers with a more responsive and direct driving experience.

EVAP System Disable

Deactivating the Evaporative Emission Control system reduces potential vapor-related issues. It also enhances fuel efficiency, making it a beneficial option for long-term vehicle maintenance.

Swirl valve/Flaps OFF

By removing the swirl flaps from the intake manifold, this option improves airflow to the engine. It also reduces potential mechanical issues, ensuring a more reliable engine performance.

Secondary System Disable

This option turns off the secondary air injection system. It reduces potential air-related issues, ensuring a more efficient engine and a smoother drive.

DTC's selectivity OFF

This option disables specific Diagnostic Trouble Codes, allowing for smoother operation after modifications. It ensures the vehicle runs seamlessly without triggering unwanted error codes.

Stage 1+/Stage 2 tuning file

An advanced ECU remapping option designed for those seeking maximum power and torque. While it requires some hardware modifications, it offers peak performance and transforms the driving experience.

CVN fix Warranty Patch

Checksumm correction

An essential tuning option that ensures data integrity within the ECU file. It validates and corrects any discrepancies, ensuring that the tuning process is accurate and reliable.

Back to ORIGINAL file (restore file to original)

This is the manufacturer's unaltered ECU file. It's crucial for those looking to revert changes or as a backup before initiating the tuning process.

E85 Flex Fuel adaptation

Adjusting the ECU for E85 ethanol fuel usage not only enhances performance but also reduces emissions. It's an eco-friendly tuning option that utilizes the benefits of ethanol fuel.

rpm static/rev limit/iddle rpm increase