Support & Documentation

Explore our Help Center for answers to your questions and assistance with your tune experience

Help By Category

3 ARTICLES
Before Order

Find out which solution to choose, how to prepare for installation, and additional features

9 ARTICLES
After Order

Learn how to install the module, what to do in difficult situations, and how to use it after installation

4 ARTICLES
General Provisions

Learn about warranty terms, pre- and post-purchase customer support, and return policy

Frequently Asked Questions
No, you do not need to keep the OBDTune module plugged in. The module is only used to install the software into the ECU. After that, the software is stored inside the ECU, and the module is no longer needed—unplug it.
You can always restore the factory setup. Each package includes the original factory ECU software. Using the same OBD module, you can reinstall the stock configuration at any time.

The process is similar to the installation:

  • Turn the ignition ON and wait 30 seconds
  • Plug the module into the OBD port
  • Wait while the LED indicator blinks
  • Remove the module when it stops

After that, the ECU will be back to factory configuration.

You do not need the audio screen to use the module. For vehicles without a factory radio or display, the installation is done directly through the OBD module. The LED indicator on the module shows the progress, so the radio or screen is not required.
It depends on which solution you choose.

If you delete only the DEF/SCR system:

  • You do not need to remove the catalyst. All exhaust components can remain installed.

If you choose the Package Deal with DPF delete:

  • Then the DPF and the SCR catalyst must be removed together from the exhaust system.
No, refilling AdBlue will no longer be required.

After the tune is installed, the DEF/SCR system monitoring is disabled, so the vehicle will not track the AdBlue level and will not trigger warnings or countdowns.

However, if the system remains physically installed and functional, you may still continue adding AdBlue if you wish, but it is no longer necessary for the vehicle to operate normally.

You do not have to drain the AdBlue tank.

You may leave the DEF in the tank, and the vehicle will continue to use it until it runs out. Once it is empty, no warnings or errors will appear.

If you prefer, you can also drain the tank, but this is not required. Both options are acceptable.

It depends on which solution you choose.

If you select the Package Deal with active DPF or SCR/DEF delete:

  • You do not need to remove the DPF. It remains installed and continues normal regeneration.

If you choose the Package Deal with DPF delete option:

  • Then the DPF and SCR catalyst must be physically removed from the exhaust system.
Yes, the OBDTune module itself can be used on multiple vehicles.

However, the software is VIN-specific, so each vehicle requires its own software package. This ensures the correct calibration for the ECU version installed in that vehicle.

You can reuse the same OBD device, but you will need a separate software package for each VIN. You can find more information about pricing on the dealer page.

Go to Dealer Page

SCR clogging is not a concern in this situation.

The SCR catalyst itself does not produce soot. Its only function is to reduce NOx using AdBlue. Without AdBlue injection, the catalyst simply becomes inactive, but it does not clog.

Yes.

Our software includes a mild ECU optimization that increases power and torque while maintaining safe operating parameters for the engine and transmission.

The goal is better drivability and stronger torque, especially at lower RPM, rather than aggressive performance tuning.

No, there should not be excessive smoke.

The software keeps the fuel and air mixture properly calibrated, so combustion remains clean and controlled.

If the DPF remains active, the exhaust will behave essentially the same as a factory vehicle.

Visible smoke is usually related to mechanical issues (injectors, turbo, air leaks, etc.), not the software itself.

The system can operate indefinitely without AdBlue/DEF once the tune is installed.

The software disables the DEF/SCR monitoring and fault logic, so the vehicle will not track fluid level, trigger warnings, or activate a countdown.

If DEF remains in the tank, the system may continue using it until it runs out. Once empty, the vehicle will continue operating normally without refilling.

In most cases, nothing special is required.

With our software installed:

  • The vehicle communicates normally through OBD
  • The readiness monitors show READY
  • There are no emissions-related fault codes

Because of this, most vehicles pass OBD emissions inspections without restoring factory software.

Important for tests using exhaust sensors: the emissions components (EGR, DEF, DPF, etc.) remain physically installed, so the system can continue operating if it is still functional.

If you ever prefer to be extra cautious, you can restore the factory ECU software using the same OBD module 500 miles before the inspection. The process only takes a few minutes. In this case, it is important that all exhaust systems are in good working order and free of faults.

In normal diagnostics, they will not see anything unusual.

With our software installed:

  • The vehicle communicates normally through OBD
  • All modules respond as expected
  • There are no emissions-related fault codes
  • The readiness monitors show READY

From the diagnostic tool perspective, the system behaves like a normal vehicle without active faults.

If you ever prefer to be extra cautious before visiting a dealer, you can always restore the factory ECU software using the same OBD module. The process takes only a few minutes. In this case, it is important that all exhaust systems are in good working order and free of faults.

We provide warranty on both the device and the installation support process.

What we guarantee:

  • The correct software selection for your vehicle
  • Module functionality (if the device is faulty, we replace it)
  • Remote support and diagnostics if the installation does not complete on the first attempt

If something does not work as expected, we analyze the installation LOGFILE and guide you step-by-step until the installation is completed.

If diagnostics confirm that:

  • the module is faulty, we send a replacement, or
  • the installation cannot be completed from our side after troubleshooting,

then a refund is issued.

In practice, the large majority of installations complete successfully, but we stay involved and provide support until the process is finished.

In most cases, no problems occur at customs.

We ship the device as a diagnostic tool, and thousands of customers in the U.S., Canada, Australia, and Europe receive their orders without issues.

Sometimes customs may charge a small import duty or processing fee, depending on your country’s regulations. If that happens, the courier (FedEx/DHL) will contact you directly.

The package itself is small and typically clears customs quickly.

You should remember: removing or tampering with factory emissions car components is illegal in some regions and can be sold for OFF ROAD USEGE ONLY!

That is why our ‘PACKAGE DEAL’ and ‘SCR ADBLUE/DEF DELETE’ modules are intended for OFF ROAD ONLY.
NEED HELP BEFORE ORDERING?
Message us — we respond within a few hours.