FOXWELL NT301 OBD2 Scanner – Compact OBDII Code Reader with Live Data & I/M Readiness (2.8" Color)

The FOXWELL NT301 is a plug-and-play OBD2 diagnostic scanner that reads and clears engine fault codes, displays live sensor data, and checks inspection readiness—no mechanic required.

The NT301 is a compact, professional-grade code reader designed for car owners and DIY mechanics who want clear, actionable vehicle diagnostics without expensive shop visits. It connects to the 16-pin DLC, interprets standard OBDII trouble codes, visualizes live data, and helps verify repairs and emissions readiness with simple buttons and a bright 2.8" color display. Designed to work with thousands of 1996+ gasoline cars, many diesel 12V models, and numerous later European and Asian vehicles, the unit delivers essential diagnostics in seconds.

How quickly will the NT301 tell me why my check engine light is on?

Plug the scanner into your vehicle’s OBDII port and power the ignition; the NT301 reads stored and pending DTCs within seconds. It decodes trouble codes into readable text so you understand the probable subsystem affected and whether the condition is current or intermittent.

• Instant DTC read and decode—no phone or subscription needed
• Clear and reset CEL after repairs to verify fix
• Works like professional readers—won’t falsely clear persistent faults

Can this reader help me pass emissions or smog testing?

The NT301 includes one-touch I/M readiness checks and a simple red-yellow-green LED indicator to show whether your vehicle’s monitors have completed. Use the built-in EVAP check and O2 sensor functions to identify systems that commonly cause emissions failures before you go to the test center.

• I/M readiness hotkeys for fast pre-inspection checks
• EVAP system testing to detect fuel-system leaks or faults
• O2 sensor test to assess air-fuel control and emissions contributors

What live data can I see, and how does it help me troubleshoot?

The NT301 displays and graphs live PID values like RPM, coolant temperature, fuel trims, and oxygen sensor readings so you can spot anomalies as they occur. Logging and graphing make it easier to correlate symptoms—such as hesitation or rich running—with sensor behavior in real time.

• Live data graphing for multiple PIDs displayed clearly on-screen
• Monitor oxygen sensors, fuel trims, coolant temp, and more
• Data logging helps confirm intermittent or hard-to-find faults

Which vehicles are supported and what updates are available?

The scanner supports all standard OBDII protocols (CAN, KWP2000, ISO9141, J1850 PWM/VPW) and works with most 1996+ gasoline cars, many 2000+ European and Asian models, and 12V diesel vehicles with OBD2. FOXWELL provides lifetime free updates for the NT301 so protocol and code coverage remain current.

• Compatible with 10,000+ vehicles using OBDII protocols
• Lifetime free firmware updates from FOXWELL
• Simple plug-and-play setup—no battery charging or subscriptions

Who is this for: The FOXWELL NT301 is ideal for DIYers, home mechanics, and vehicle owners who want quick, reliable diagnosis of engine faults and emissions readiness without paying shop diagnostic fees. It’s a compact, durable tool for anyone who wants to verify repairs, monitor live sensor data, or confirm inspection status—especially useful for troubleshooting before a roadside service visit or emissions test.