DownloadOBD2 Diagnostics - Scan and Reset Fault Codes While Accessing Live Sensor Data
Piston puts your vehicle's diagnostic data right in the palm of your hand.
Is your Check Engine Light illuminated? Transform your smartphone into a professional-grade scanner with Piston. Retrieve Diagnostic Trouble Codes (DTCs) along with valuable Freeze Frame data to pinpoint and resolve issues efficiently.
Simply connect a compatible ELM327 adapter (Bluetooth or WiFi) to your vehicle's OBD2 port. Piston provides step-by-step setup guidance - accessible via the Home screen after installation or through Settings anytime.
Piston empowers you to:
• Read and reset OBD2-compliant Diagnostic Trouble Codes
• Analyze Freeze Frame data (critical sensor readings captured during fault detection)
• Monitor live sensor readings
• Verify Readiness Monitor status for emission systems
• Maintain local DTC history records
• Securely store DTCs in cloud storage after login
• Visualize sensor data through detailed charts
• Export real-time sensor data as files
• Retrieve your vehicle identification number (VIN)
• View ECU technical specifications including OBD protocol and supported PIDs
Premium features are available through a one-time in-app purchase - no recurring subscriptions required.
Note: Piston requires a compatible ELM327 Bluetooth/WiFi adapter to function as a vehicle scanner. The app supports OBD-II (OBD2) and EOBD standards.
All vehicles sold in the US since 1996 must comply with OBD2 regulations.
EOBD became mandatory for gasoline vehicles (2001) and diesel vehicles (2004) in the EU. Australian and New Zealand regulations require OBD2 for petrol (2006+) and diesel (2007+) vehicles.
Important: App functionality is limited to the data your vehicle's OBD2 system provides.
For inquiries or feedback, contact our support team at [email protected].
What's New in Version 3.8.0
Last updated on Aug 2, 2024
• Android 14 compatibility
• Redesigned Sensor Selection interface
• Expanded sensor support (vehicle-dependent availability)
