MotorQue
Vehicle diagnostics, straight from your phone.
MotorQue connects to any ELM327 OBD-II adapter — Bluetooth or WiFi — and gives you live engine data, trouble codes, trip logs, and readiness monitors, all stored privately on your device. No account, no cloud, no subscription.
Features
Everything in the OBD-II spec, nothing you don't need.
Plug in any ELM327 adapter, connect over Bluetooth or WiFi, and start reading. No pairing codes, no accounts, no recurring fees.
Live data dashboard
Customizable gauge layout with RPM, speed, temperatures, pressures, O2 sensors, and 100+ standard OBD-II PIDs. Configurable widgets, live history sparklines, and user-defined thresholds.
Trouble codes
Read and clear stored, pending, and permanent DTCs. Database of 260,000+ codes with plain-English descriptions. Freeze frame capture shows exact conditions when a fault was logged.
Emissions readiness
Instant view of all OBD-II readiness monitors — catalyst, oxygen sensor, EVAP, EGR, and more. Know before you go for an emissions test whether your car will pass.
Trip logging
Record trips with live sensor samples. View duration, distance, average speed, engine load, and temperature history for every trip. All stored locally.
Multiple vehicles
Create profiles for each vehicle with custom names and notes. Trip history, DTC records, and dashboard layouts are saved separately per vehicle.
BLE and WiFi adapters
Works with Bluetooth 4.0 BLE adapters (Vgate iCar Pro 2S, OBDLink CX) and any WiFi ELM327 adapter. Enter the adapter IP and port and connect directly.
Adapters
What you need to get started.
- Any ELM327 OBD-II adapter with Bluetooth 4.0 (BLE) or WiFi support.
- Recommended BLE: Vgate iCar Pro 2S (~$30) or OBDLink CX (~$50).
- WiFi adapters connect via a hotspot — join the adapter's network in iOS Settings, then enter the IP in the app.
- Avoid cheap "ELM327 V1.5" clones with classic Bluetooth — iOS does not support classic BT accessories without MFi certification.
Privacy
On-device, always.
Vehicle data is read from your adapter and stays on your phone. MotorQue does not require an account, does not use analytics, and does not upload diagnostics, location, or trip data to any server.
Trip records and vehicle profiles are stored in your device's local storage. Exports happen only when you explicitly use the iOS share sheet.