No, the app will not advise of which logs to record. 

All next steps, including data logging instructions and details on which pulls to record, are provided via email in reply to Tune Requests.

Once logs are completed, you'll ensure they're synced to the TDN and submit another Tune Request for review.

TDN (Tune Delivery Network) is the cloud-based service used by HP Tuners and ZFG Racing to exchange tune files and data logs remotely. Files are managed through the TDN App.

After creating your account and linking ZFG Racing as your tuner, tune files, stock reads, and data logs can all be exchanged through the platform.

TDN is a central part of the remote tuning process.

Getting started is simple.
To ensure no steps are missed, please follow our TDN Quick Start Guide in Tuning Central (linked below).

Once your tuning device arrives, you'll:
1. Install the TDN App and set up your tuning device
2. Connect the device and read your vehicle's factory calibration.
3. Submit the required vehicle information through our calibration portal (Tuning Central).
4. Our calibration team will review your submission and build your custom tune.

Once complete, you'll receive tune files through the TDN App along with instructions for data logging the latest revision.

Additional revisions may be provided as needed based on datalog review and vehicle modifications.

In many cases, yes. Existing HP Tuners devices may be used with your vehicle and tuning goals. However, compatibility depends on the specific device model, device generation, vehicle platform, desired tuning method, and tuner preferences.

Not all HP Tuners devices support all vehicles or tuning methods. For example, we may only support tuning via TDN App for some platforms, while others may use VCM Suite. Licensing requirements and existing device usage may also affect compatibility.

If you already own a tuning device, please contact us with the device model and vehicle information before purchase. We will be happy to help determine compatibility and any licensing requirements.

In many cases, an HP Tuners device can be used with multiple vehicles. Generally, these devices can be used to tune multiple vehicles either simultaneously or over the lifetime of the device. However, compatibility depends on the specific device, device generation, vehicle platform, tuner preferences, and licensing requirements.

Most supported vehicles require HP Tuners credits (licenses) before tuning can be performed. The number of credits required varies by vehicle and application. Additional credits may need to be purchased when tuning another vehicle.

Compatibility may also vary based on the model and generation of tuning device being used. Not all devices support all vehicles or vehicle generations, and not all devices support the same tuning methods (e.g., TDN App and/or VCM Suite).

If you are considering using a tuning device on a different vehicle, or using an existing device on your vehicle, please contact us with the device model and vehicle information. We will be happy to help determine compatibility and any licensing requirements before purchase.

Tuning purchases are generally non-transferable and are intended for the original vehicle for which they were ordered. However, we understand that circumstances can change, and requests involving tune or device transfers may be reviewed on a case-by-case basis depending on the specific vehicle, tuning device, purchase history, and requested changes.

In most situations, the original vehicle and tuning device must no longer be associated with the existing tune before any transfer options can be evaluated.

If you are considering transferring a tune or tuning device to another vehicle, please contact us with the details of both vehicles and the tuning device being used so we can review the available options.

If you experience any issues with the TDN App, please capture screenshots or a screen recording showing exactly what is occurring and email them to Sales@TunedByZFGRacing.com.

Including screenshots, screen recordings, error messages, and a brief description of what you were attempting to do will help our team review the issue and provide assistance as quickly as possible.

Our team will be glad to help troubleshoot and advise of the next steps.

If your vehicle will not successfully read the stock file, please screenshot the specific error message(s) shown and gather an InfoLog.

Once completed, please email us directly and attach the screenshots, InfoLog, and any other relevant details. Our team will review the information provided and advise of the next steps after the review is completed.

Providing the exact error message and InfoLog helps us identify the cause of the issue as quickly as possible.

HP Tuners offers several advantages compared to many handheld tuning devices. In most cases, diagnostic software, dealer-level diagnostic tools, OBD-based monitoring devices, scan tools, gauges, and other vehicle accessories can continue to be used normally while a tune is installed.

As a best practice, we recommend restoring the stock calibration before performing certain dealer-level programming or software updates, such as Ford FDRS or IDS programming.

Additionally, the HP Tuners Restore file generated from your original stock read is a true and complete copy of your factory calibration and controller data.

Because HP Tuners devices do not permanently marry themselves to the vehicle's ECU, customers generally do not need to worry about long-term device-to-vehicle associations if the tune is removed in the future, such as for resale or returning the vehicle to stock.

Yes. Before tuning with ZFG Racing, any previously used tune or tuning device must be completely disconnected from the vehicle.

For most tuning platforms, this means more than simply restoring the stock calibration. The device must be fully removed or "unmarried" from the vehicle according to the manufacturer's instructions so that neither the tuning device nor the vehicle remains linked to the previous tune.

If you are unsure whether a previous tuning device has been fully removed, please let us know which device was used and we will be glad to help determine the next steps.

Yes. FORScan changes and custom tuning operate independently, so changes made in one generally do not affect the other.

FORScan modifications made before tuning will remain in place, and flashing a custom tune does not overwrite or undo those changes. Likewise, making FORScan changes after tuning does not require a re-tune.

In rare cases, FORScan may report an OSID mismatch when connecting to a tuned vehicle for the first time. If this occurs, please review the troubleshooting tips provided on this page.

After completing those steps, FORScan should connect normally whether the vehicle is running a stock calibration or a custom tune.

If your RTD4 will not sync, first verify that your internet connection is stable and that you are signed into the correct HP Tuners account within the TDN application. Restart the device and application, then attempt the sync again. If the problem persists, contact our our team and include screenshots of any error messages along with your order number so we can assist with troubleshooting.

We only support HP Tuners devices.
Compatibility of each HP Tuners device varies by vehicle year/make/model, device type & generation, and your mobile phone's operating system (iOS or Android).
All Tuning Packages include the latest-generation RTD (Remote Tuning Device) from HP Tuners.