How to Perform a Throttle Body Relearn on Lamborghini Vehicles

If you own a Lamborghini Huracán, Aventador, Urus, or other modern Lamborghini model, you may need to perform a throttle body relearn procedure at some point. This is necessary if the throttle body has been cleaned, replaced, or disconnected, or if you are experiencing issues like a rough idle, stalling, surging, or poor throttle response.

The electronic throttle control system on Lamborghini vehicles is very precise and needs to be recalibrated after any work is done to it. A throttle relearn, also known as a throttle adaptation, allows the Engine Control Module (ECM) to relearn the closed and wide open throttle positions of the throttle body.

What Lamborghini Models Require a Throttle Relearn?

In general, all Lamborghini models from 2003 onwards with an electronic throttle control system will require a throttle relearn procedure after the throttle body is worked on. This includes:

Lamborghini Gallardo (2003-2013)
Lamborghini Murciélago (2003-2010)
Lamborghini Aventador (2011-present)
Lamborghini Huracán (2014-present)
Lamborghini Urus (2018-present)
Lamborghini Revuelto (2023-present)

Older Lamborghini models with a mechanical throttle linkage, like the Diablo and Countach, do not have electronic throttle control and thus do not require any throttle relearn procedures.

When Should You Perform a Throttle Relearn?

There are a few scenarios where you will need to perform a throttle body relearn on your Lamborghini:

After cleaning the throttle body: Over time, carbon deposits can build up on the throttle plate and bore, affecting airflow. Cleaning the throttle body can help restore performance, but the ECM will then need to relearn the throttle positions.
After replacing the throttle body: If the throttle body needs to be replaced due to failure or damage, a throttle relearn must be done to calibrate the new part.
After disconnecting the battery: Disconnecting the battery will cause the ECM to lose its learned throttle settings. A relearn procedure should be done after reconnecting the battery.
To resolve drivability issues: A rough or erratic idle, stalling, hesitation, surging, or uneven power delivery can sometimes be resolved by performing a throttle relearn. This allows the ECM to recalibrate for changes in the throttle body over time.

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Throttle Relearn vs Idle Relearn

It’s important to note that a throttle body relearn is different than an idle relearn or idle adaptation. The throttle relearn focuses on relearning the closed and wide open throttle positions, while an idle relearn adjusts the idle speed and ignition timing at idle.

Some vehicles require both a throttle relearn and an idle relearn to be performed after throttle body service. Consult your Lamborghini’s service information to determine which procedures are necessary for your specific model.

How to Perform a Lamborghini Throttle Relearn

The throttle relearn procedure can vary slightly between different Lamborghini models. However, the general process is as follows:

Step 1: Connect a battery maintainer or charger to ensure steady voltage during the relearn process. Low voltage can cause the relearn to fail.
Step 2: Locate the OBD-II diagnostic port under the dashboard and plug in a compatible scan tool. You will need a professional-grade scan tool capable of reading Lamborghini control modules, like the X-431 from Launch or the Snap-on MODIS.
Step 3: Turn the ignition on but do not start the engine. Allow the scan tool to boot up and establish communication with the vehicle’s control modules.
Step 4: Using the scan tool, navigate to the Engine Control Module (labeled as DME on some models). Select the option for Throttle Body Adaptation or Throttle Valve Adjustment.
Step 5: Follow the on-screen instructions to perform the relearn. The scan tool will have you press and release the accelerator pedal at various intervals to allow the ECM to relearn the closed and wide open throttle positions.
Step 6: Once the relearn is complete, turn off the ignition and unplug the scan tool. Start the engine and allow it to idle. Check that the idle speed is correct and stable.
Step 7: Take the vehicle for a test drive, verifying normal throttle response and power delivery across the rpm range. If you still experience drivability issues, further diagnosis may be needed to pinpoint the problem.

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Troubleshooting Throttle Relearn Issues

If you run into problems during the throttle relearn procedure, there are a few things to check:

Make sure the battery is fully charged. Low voltage will prevent the relearn from completing successfully. Connect a battery maintainer during the procedure.
Check for any stored Diagnostic Trouble Codes (DTCs). Codes relating to the throttle body, accelerator pedal position sensor, or wiring issues will need to be resolved first before the relearn can be done.
Verify the throttle body is clean and moving freely. Any sticking or binding can cause the relearn to fail. The throttle plate should move smoothly with no obstructions.
Confirm you are using the correct relearn procedure. Some Lamborghini models may have a slightly different process or require additional steps. Always refer to the factory service information for the exact procedure.

When to Seek Professional Help

While a throttle body relearn is a relatively straightforward process, it does require a professional scan tool and some knowledge of vehicle diagnostics. If you are not comfortable performing the procedure yourself, it’s best to have it done by a qualified Lamborghini technician.

Additionally, if you continue to experience drivability issues after the relearn, there may be other underlying problems that need to be addressed. A professional technician will have the tools and expertise to diagnose any faults in the throttle control system or other related components.

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Preventing Throttle Body Issues

To minimize the need for throttle body service and relearn procedures, there are a few preventive measures you can take:

Use high-quality fuel. Low-grade or contaminated fuel can cause increased carbon buildup on the throttle body and valves. Always use premium fuel from a reputable source.
Change the air filter regularly. A dirty air filter can allow debris to enter the throttle body, leading to buildup and sticking. Inspect and replace the air filter at the recommended intervals.
Address any running issues promptly. Rough running, misfires, or lean conditions can cause increased carbon deposits to form. Have any drivability problems diagnosed and repaired as soon as possible.
Avoid unnecessary throttle body cleaning. While cleaning the throttle body can temporarily restore performance, it also removes the protective coating on the throttle plate and bore. This can actually lead to increased carbon buildup over time. Only clean the throttle body when necessary, not as regular maintenance.

By following these tips and staying on top of routine maintenance, you can help prevent throttle body issues and keep your Lamborghini’s performance optimal. If you do encounter any problems, a throttle relearn is often the first step in restoring normal operation.

Final Words from Boss Erwin

A throttle body relearn is a critical procedure that allows your Lamborghini’s engine management system to recalibrate the throttle control after any service or changes. It is necessary to ensure proper drivability, idle quality, and throttle response.

While the relearn process is not difficult, it does require a professional scan tool and some knowledge of vehicle diagnostics. If you are unsure of how to perform the procedure, it’s best to consult with a qualified Lamborghini technician.