OBD2 Ninja: Car Code Reader

Check engine light on? Find out whether it's serious before
you book a shop visit or drive another mile.

OBD2 Ninja reads your car's codes and rates every one Fix
Now, Fix Soon, or Monitor for your year, make and model.
Then it tells you what to check first.

$0.99 once. No subscription, no account, no ads. OBD2 Ninja
carries Apple's "Data Not Collected" privacy label, and
everything works offline. In a parking garage, on the
shoulder, with no signal at all.

IS IT SERIOUS?
Every code gets an urgency rating, not just a definition:
• Fix Now: stop driving or get it looked at today
• Fix Soon: safe to drive, book it this week
• Monitor: keep an eye on it
Plus what usually causes it on your specific vehicle, and
the cheapest thing to check first.

READY FOR EMISSIONS?
See all eight readiness monitors at a glance before you go
to the test station. Know whether you'll pass, or how many
more miles of driving you need, instead of paying to find
out.

READ AND CLEAR
• Stored, pending and permanent codes
• Freeze frame data captured when the fault tripped
• Clear codes and reset the light after you fix it
• Confirm the fix actually held

LIVE DATA
Watch coolant temp, fuel trims, O2 sensors, RPM, load and
timing in real time. Pin down an intermittent fault the
parts-store scanner can't see.

WHAT YOU NEED
Any ELM327 Bluetooth LE or Wi-Fi adapter, and a car built
1996 or later (2001+ petrol / 2004+ diesel in the EU).
Tested and confirmed with: Carista, Vgate iCar Pro BLE,
OBDLink MX+. Full list and setup guide at ninja-obd2.com.

WHAT IT DOESN'T DO
OBD2 Ninja reads the engine and emissions systems that every
car is required to expose. That is what turns your check
engine light on. It does not read ABS, airbag, transmission
or body-module codes, and it can't do dealer-level coding.
Those need manufacturer-specific tools. We'd rather tell you
that now than after you've paid.

PRIVACY
No account. No sign-up. No analytics. Nothing leaves your
phone. Apple's own privacy label on this page reads "Data
Not Collected." Check it.

SUPPORT
A real person answers every email. support@ninja-obd2.com