American V-Twin Diagnostics — We're here to help
Need help with the American V-Twin Diagnostics app? Whether you're experiencing a technical issue, have a question about your subscription, or want to provide feedback, we're here to assist you.
The app covers 2003–2017 Harley-Davidson motorcycles equipped with Delphi Electronic Fuel Injection (EFI) systems. This includes Twin Cam (Dyna, Softail, Touring) and Evolution Sportster models from those years.
Subscriptions are managed through your device's app store. On iOS, go to Settings → Apple ID → Subscriptions. On Android, go to Google Play Store → Menu → Subscriptions. You can cancel at any time and retain access until the end of your current billing period.
Your subscription is tied to your Apple ID or Google Play account. You can use the app on any device signed into the same account. Note that locally saved data (garage profiles, diagnostics, service records) is stored on each device individually.
On the login screen, tap "Forgot Password?" and follow the prompts. You can reset your password using either your registered email address or phone number.
No. The app is a reference and diagnostic aid designed to help you identify common issues. For critical repairs, safety-related work, or detailed procedures, always consult your motorcycle's factory service manual and/or a qualified technician.
Refunds are handled by Apple or Google according to their respective store policies. Visit Apple's refund page or Google Play's refund page for instructions.
We appreciate your feedback. Please email us at support@vtwindiagnostics.com with the specific diagnostic path, step, or specification in question, and we'll review and correct it in a future update.
American V-Twin Diagnostics is available for $4.99 per month. Your subscription includes:
Developer: Classified AI LLC
Website: vtwindiagnostics.com
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Terms of Service: vtwindiagnostics.com/terms