OBD-II · Real-time · Honest diagnostics

Everything your car is
telling you — honestly.

Connect any ELM327 OBD-II adapter for live sensors, honest diagnostics, and trip logs — for one car or a whole yard.

Know your car, deeper

No expensive shop scanner — just your phone and a cheap adapter.

Watch every supported sensor (PID) on live charts. Pop out a Picture-in-Picture window over any other app.

Anomaly detection on your own car's data — warm-up, idle, fuel trim, ignition timing. Findings are ‘worth a look’, never fake ‘confirmed faults’.

Just swap the adapter between cars. It auto-reconnects, reads the VIN, and starts a fresh session per car — even with the screen off.

Stored, pending and permanent DTCs, freeze frame, monitor status, and VIN decoding — all saved raw and faithful.

Export to CSV or JSON anytime. No ads, no tracking, no comparing your car against strangers'.

Compatible with inexpensive ELM327 adapters. 6 languages, metric and imperial units.

CarMIE looks only at your car's own data. Every result is a clue worth checking — not a diagnosis.

“Idle is very steady (±18 rpm) — healthy.” When it's fine, it says so plainly.

“Bank 1 is correcting lean — possible intake leak. A candidate, not a confirmed fault.” Honest, exactly as worded.

Plug in your adapter and open CarMIE. Hear what your car has been telling you all along.