Harley O₂ Sensor Emulator 2021+ – Removal of ECU Fault Codes

Fix sensor errors, improve throttle response and stabilize performance after an exhaust change.

This new O₂ probe emulator is specially designed to remove ECU fault codes that appear on Harley-Davidson 2021+ equipped with three oxygen sensors after installing aftermarket exhausts.

✅ Main Features

• Remove fault codes generated by exhaust modifications on Harley 2021+ (including 3-probe models).
• Plug-and-play installation – connection in a few minutes, without cutting or welding.
• Stable continuous signal which keeps the ECU happy and improves throttle response.
• Solves loss of torque at low revs often caused by open exhausts.
• Reliable and essential for motorcycles equipped with non-original exhausts.

⚠️ Note: This module does not increase power. To gain performance, use a real tuning box. The emulator is used to stabilize the ECU and remove engine lights.

🧩 Compatible Models

• Harley-Davidson Touring (Road Glide, Street Glide, Road King Special…) – 2021+
• Harley-Davidson Softail – 2021+
• Also compatible with Softail 2024+ revised

📦 Contents of the pack

• 1 × Fuel Power O₂ Sensor Emulator (Model 1104006)
• Plug-and-play harness with OEM connectors