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Piston

Category : Auto & VehiclesVersion: 3.8.0

Size：10.5 MBOS : Android 6.0+

Developer：Stinez Pty Ltd Update：Jun 27,2026

5.0

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Application Description

OBD2 Diagnostics – Retrieve and Reset Error Codes Plus Real-Time Sensor Data Access

Piston puts your vehicle's diagnostic details right in the palm of your hand.

Is your Check Engine Light (MIL) illuminated? Transform your smartphone into a professional-grade scanner with Piston to retrieve Diagnostic Trouble Codes (DTCs) and freeze frame data – helping you pinpoint and resolve automotive issues quickly.

Simply connect a compatible ELM327 adapter (Bluetooth or WiFi) to your vehicle's OBD2 port. Piston provides step-by-step pairing guidance – accessible anytime from either the Home screen after setup or through Settings.

Piston empowers you to:

• Read and clear standard OBD2 Diagnostic Trouble Codes

• Access Freeze Frame data (sensor recordings when ECU detected faults)

• Monitor live sensor readings

• Verify Readiness Monitor status (emission control diagnostics)

• Maintain a local DTC history log

• Securely store DTCs in the cloud with account login

• Visualize sensor data through comprehensive charts

• Export real-time sensor readings

• Retrieve your vehicle's VIN

• View ECU specifics including OBD protocol and PID numbers

Note: Premium features require a one-time in-app purchase (no recurring subscriptions).

Requires separate ELM327-compatible Bluetooth/WiFi device. Compatible with OBD-II and EOBD standards.

OBD2 compliance mandatory for all US vehicles manufactured since 1996.

EOBD became compulsory for EU petrol vehicles (2001+) and diesel models (2004+). Australia/New Zealand mandate OBD2 for petrol (2006+) and diesel (2007+) vehicles.

Disclaimer: Data availability depends on your vehicle's OBD2 implementation.

Contact [email protected] for inquiries or feedback.