FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light
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Availability:
20 left in stock
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Saturday, Sep 19
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Features
- Diagnose Check Engine Light in Seconds No Mechanic NeededThe FOXWELL NT301 OBD2 scanner instantly reads & clears engine fault codes (DTCs) with one click. Simply plug into the 16-pin DLC port, turn ignition on, and get accurate results within secondsNo prior car knowledge required. Save hundreds on dealership fees by knowing exactly whats wrong before you visit a shop. The #1 choice car scanner for DIYers and car owners who want to take control of their vehicles health
- Clear & Reset CEL with ConfidenceUnlike cheap code readers that just erase codes temporarily, NT301 works like all professional vehicle code readers: It clears the check engine light only after youve fixed the underlying issue. If the problem isnt fully repaired, the fault code will reappear. So youll never get a false pass. Use the foxwell scanner to verify your repair work and drive with peace of mind
- Sm-og Check Helper Know Your Pass/Fail Status Before the TestWith dedicated one-click I/M readiness hotkeys and a simple Red-Yellow-Green LED indicator, youll instantly know if your vehicle is ready for annual testing. Built-in speaker provides clear audio feedback. No guessworkjust confidence before you head to the test center. One less thing to worry about when inspection day comes
- Advanced OBDII Modes O- 2 Sensor & EVAP TestingNT301 go beyond basic code reading with enhanced OBD2 modes. Run an EVAP system check to assess fuel tank condition, and use the O- 2 sensor test to optimize air-fuel ratio, boosting fuel economy, cutting em- issions, and saving you money at the pump. The code reader for cars and trucks is like having a mini em-issions lab in your glove box
- Live Data Graphing Spot Engine Issues in Real TimeView and log live sensor data in easy-to-read graphs with this OBD2 scanner diagnostic tool. Monitor ox- ygen sensors, fuel trims, coolant temperature, RPM, and more to spot suspicious values instantly. This obd scanner gives you professional-grade insight without the pro price taga feature you wont find on basic $20 car code readers
- Works with 10,000+ VehiclesSupports all OBDII protocols: KWP2000, J1850 VPW, ISO9141, J1850 PWM, and CAN. The scanner for car is compatible with most 1996+ gasoline cars, light trucks, and SUVs sold in the U.S., plus many 2000+ European and Asian models. It also works on 12V diesel vehicles equipped with OBD2. Check your vehicles compatibility before purchasefunctionality varies by year, make, model, and VIN
- Lifetime Free Updates + 1-Year Seller Assurance + Plug & PlayNo charging, no setup, no subscriptionjust plug the Foxwell NT301 odb2 scanner into the DLC port and start diagnosing instantly. Features a bright 2.8" color screen readable even in daylight. Trusted by mechanics on YouTube and DIYers worldwide. Backed by 1-year seller assurance: damaged, used, or incomplete units replaced or refunded. If you're not 100% satisfied, return itno hassle, no questions asked
Description
We have 13 years of experience in car diagnose industry. We are committed to making car diagnosis easier and smart. A true sharing story from a named Steve: Right out of the box this worked perfectly on my Acuras and Corvettes. Very cool device, was able to scan for all active and stored codes! Could see my O2 sensors and full emission system was working. Measured my boost levels and IATs in real time. Great value! Don’t let a simple check engine light drain your wallet. This OBD2 scanner quickly reveals the cause behind the warning before rushing to repair shop. Cannot scan ABS, EPB, A/C systems and cannot support any special functions like bidirectional control, calibration or reset advanced function related NT301 shines among competitors due to its integrated body, user-friendly design, compact size, organized keypad, intuitive menu, 2.8" color screen. The I/M Readiness is a vital tool to evaluate a vehicle's compliance with state e-missions programs before inspection, with hotkey for swift checks. To know if you're ready for a smog check, three LEDs tell you the status. Red indicates- Urgent Repair; Yellow - Needs Diagnosis; Green - Good Status The obd scanner can be automatically displayed after reading, press "HELP" button with DTC guide for possible causes if codes show the small "?" icon. The compatibility of transmission temperature and fuel pressure will vary from different car models, please check it before purchase. Keep your car’s health in check with the NT301 OBD2 scanner diagnostic tool. It displays real-time data in easy-to-read graphs, helping you track engine RPM, vehicle speed, accelerator position, ignition timing, air flow, coolant temperature, and more. Access correct menu easily: Select OBDII/EOBD → Wait a few seconds → Live Data. This odb2 scanner nt301 can read freeze frame data which shows engine conditions such as fuel trim, fuel pressure, engine coolant temp, etc. Then records PIDs for later use to help you diagnose intermittent driving performance problems which can not be determined by any other methods. Foxwell NT301 obd scanner diagnostic tool has a built-in DTC look up library, problem repair help for codes detected, verified fixes for common problems. This obd ii scanner can be automatically displayed after reading, press "HELP" button with DTC guide for possible causes if codes show the small "?" icon. This obd scanner diagnostic tool is designed for fast use so you can get the results you want in the shortest time with one-click hot keys for reading/clearing DTCs. To know if you are ready for a smog check, press I/M button(rubber) for 3 seconds. Red-Yellow-Green LEDs and build-in speaker indicate the readiness status for smog check. This code reader enables you determine the problem yourself, or let you know exactly what needs replacement in case you need. If you are unable to determine the problem, you can print out the diagnostic data and send the data to your mechanic for help. Check ABS SRS TCM Engine 2 in 1 Scanner and Tester Car Battery Tester 12&24V ABS/SRS Scanner Tool Enhanced Car Code Reader All-System OBD2 Scan Tool Check ABS SRS TCM Engine
Brand: FOXWELL
Power Source: Corded Electric, Plug and Play, Full OBDII Functions, Live Data Logging, Data Print, One Key I/M Readiness, DTC Help See more
Product Dimensions: 8.66"L x 3.15"W x 6.69"H
Operating System: [Choice Of Millions People] [Recommended by Major Websites/Mechanic] Windows_XP/7/8/10 to update, Mac and IOS system not supported. See more
Screen Size: 2.8 inches
Brand Name: FOXWELL
UPC: 721272382099 634769664960 602938429979 710882313685 689782535353
Number of Items: 1
Global Trade Identification Number: 99
Manufacturer: FOXWELL
Included Components: 1*NT301 obd2 scanner, 1* usb cable, 1* quick reference guide
Item Type Name: FOXWELL Professional Enhanced OBDII Diagnostic Code Reader
Item Weight: 0.16 kg
Model Number: NT301
Manufacturer Part Number: NT301
Manufacturer Warranty Description: 12 Months
Power Source: Corded Electric, Plug and Play, Full OBDII Functions, Live Data Logging, Data Print, One Key I/M Readiness, DTC Help
Operating System: [Choice Of Millions People] [Recommended by Major Websites/Mechanic] Windows_XP/7/8/10 to update, Mac and IOS system not supported.
Screen Size: 2.8 inches
Automotive Fit Type: Universal Fit
Native Resolution: 320x240
Item Dimensions L x W x H: 8.66"L x 3.15"W x 6.69"H
EU Spare Part Availability Duration: 2 years
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Sep 19
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I bought this because I wanted a straightforward OBD2 scanner that could read codes, clear codes, and show live data without needing a subscription or some overly complicated app setup. The FOXWELL NT301 does exactly what I needed. It is easy to use, the screen is readable, and it gives enough information to help diagnose check engine lights and basic drivability issues. The live data feature is especially useful because sometimes a code by itself does not tell the whole story. Being able to look at what the sensors are actually doing makes troubleshooting a lot easier. It is not a full professional shop scan tool, but it is not trying to be. For home mechanics, truck owners, DIY repairs, and general vehicle maintenance, it is a very useful tool to keep around. Simple, practical, and worth having in the garage or vehicle. It can save a lot of guessing, and guessing is usually how parts stores sell unnecessary sensors.
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Reviewed in the United States on May 16, 2026 by BrightDim
I was skeptical at first cause it was so cheap but this thing far exceeded my expectations. I could figure what was up with my Jeep but the live readings you get while driving is a game changer(as long as you know how to read the info, otherwise there is guaranteed a YouTube video or forum on the Internet with your answer). You can have all your sensors, cat info, ect in live read out in numbers or even if you need to see it in a graph while the car is running. You can even pick a couple specific things you need to compare while the motor is on and driving or revving simultaneously side by side on the graph to diagnose something. This ain't no$1000 scanner and you can't modify or tune nothing obviously on it but it dang sure ain't just a simple thing to check to see only what codes your trucks check engine light is throwing and to just clear them out either. It's the perfect in-between scanner that'll get you by with enough read outs to more or less figure your issue. Id for sure recommend this to anyone from mechanic to teenager learning about ratios and sensors and how the numbers are supposed to read. Go get this thing and get your hands greasy y'all
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Reviewed in the United States on June 27, 2026 by Andy
SUMMARY: Overall a solid ODB2 engine scanner. It's a universal scanner, not brand specific. Instructions aren't very good. (-1 star on that). Realtively intuitive to use for basic code reading and clearing. Live data is useful once you understand it. I used it for 2009 GMC Sierra 1500 Denali 6.2L L9H AWD, and occasionally a Subaru Outback although I don't recall how well it worked on the Subaru. PROS: * Affordable meter with some good engine scanning capability * Ability to read a bunch of sensors such as MAP Sensor and O2 Sensors and collect live real-time data. * Worked well on my 2009 GMC Sierra 1500 Denali 6.2L L9H AWD * Its a "universal" ODB2 scanner, in theory good for "any" vehicle, useful for households with multiple car brands. CONS: * Can't read or clear codes for the traction control, anti-lock brakes (ABS), or airbags (SRS). * No body or chassis systems: It will not diagnose issues like faulty tire pressure monitors (TPMS), power window regulators, or climate control modules. * No bidirectional controls: You cannot cycle the fuel pump, command an EVAP vent valve test, or actuate mechanical parts such as brakes (to bleed brakes) using this tool. * No ability to add specific brand software through upgrades. KEY CAPABILITIES (Specific to my 2009 GMC Sierra 1500 Denali 6.2L L9H AWD, but generally applicable to all) * Clear the Check Engine Light: Reads, decodes, and resets basic engine diagnostic trouble codes (DTCs). * Live data stream: Monitors real-time GM powertrain metrics like engine coolant temperature, RPM, oxygen sensors, mass air flow (MAF), and short/long-term fuel trims. * Misfire counters (Mode 6): Evaluates enhanced Mode 6 data, which can help track down which specific cylinder is causing a rough idle or misfire before it triggers a hard code. * Emissions readiness: Features physical I/M readiness hotkeys to instantly check if the truck's EVAP, oxygen sensor, and catalytic monitors will pass a local smog inspection. LIMITATIONS: (Comments specific to my 2009 GMC Sierra 1500 Denali 6.2L L9H AWD, but generally applicable to all) * No StabiliTrak / ABS / Airbags: The Denali trim features a complex suspension and safety layout. The NT301 cannot read or clear codes for the StabiliTrak (traction control), anti-lock brakes (ABS), or airbags (SRS). * No body or chassis systems: It will not diagnose truck-specific electronic issues like faulty tire pressure monitors (TPMS), power window regulators, or climate control modules. * No bidirectional controls: You cannot cycle the fuel pump, command an EVAP vent valve test, or actuate mechanical parts using this tool. It's worth the $55, but if you are a serious DIYer, you might find it worth upgrading to a brand specific model and one with addtional features like TPMS diagnostics, ABS and SRS modules, Body and Chasis modules, and more. For my 2009 GMC Sierra Denali 1500 6.2L L9H AWD truck, I ultimately ordered the Foxwell NT501 Elite (GM Brand option) and that appears to be the most capable scanner for that vehicle. It arrives tomorrow. I wanted to be able to clear stabilitrak system and traction control warnings after I unplugged a wheel sensor. I may use the ABS capabilities and the brake bleeding capabilities downstream. That model is about $160, but I am about to put a new engine in the truck, and feel like it's "all the other things" that are potentially going to have issues downstream. Keeping the 301 as well as it's a universal ODB2 engine scanner.
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Reviewed in the United States on July 29, 2026 by Johnny Guitar
Several years ago I purchased a deluxe OBD tester that was designed for commercial use. It was a very nice tester but cost over $200. Unfortunately, I had packed it away for our move into a new house and I don't know where it is. My wifes car displayed the check engine light yesterday so I was motivated to search again for my expensive OBD tester but was unable to locate it. I went to Amazon and searched on the currently available OBD testers and thought I don't want to spend another $200. Maybe I can purchase a cheap OBD tester that will get the job done. I decided on the Foxwell NT301 tester because the reviews were good and it had the features I needed. I have Amazon Prime so the tester was delivered this morning. I watched a couple of Youtube videos on how to use the tester then headed out to test my wifes car. WOW! This tester is fantastic. In fact, it is better than my $200 tester. Not only does it provide the error codes, it also provides a listing of all possible causes, it is compact, rugged, and super easy to use. The only advantage my expensive tester has is that it came with an assortment of different OBD style connectors. I only need the OBD2 connector so the Foxwell tester does everything I will ever need. If you need a solid OBD tester that doesn't break the bank you can't go wrong with the Foxwell NT301.
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Reviewed in the United States on September 11, 2024 by James
My check engine light came on a few weeks ago and I immediately started stressing about how much it was going to cost to get it diagnosed and fixed. Last time this happened I took it to a mechanic and they charged me $100 just to run the diagnostic test, then wanted another $300 to fix whatever was wrong. I decided this time I was going to at least figure out what the problem was before taking it anywhere. I did some research and found out about these OBD2 scanners that let you read the error codes yourself. This FOXWELL one had really good reviews and wasn't crazy expensive, so I ordered it. Best automotive purchase I've ever made, hands down. When it arrived I was a little intimidated because I'm not super car-savvy, but it turned out to be incredibly easy to use. You just plug it into the OBD2 port which is usually under the steering wheel (mine was right above the pedals), turn your car to the ON position without starting it, and the scanner powers right up. No batteries needed, it runs off the car's power. The interface is really straightforward. There's a screen and a few buttons, and it walks you through everything. I hit the button to read the codes and within like 30 seconds it showed me exactly what was wrong - turned out I had a faulty oxygen sensor. It gave me the code (P0420) and a description of what it meant. I googled the code and found out it was a pretty common issue and not urgent. I keep this scanner in my center console now along with my registration and insurance papers. It's small enough that it doesn't take up much space and I like having it on hand in case the light comes on again. The cable is long enough that I can have the scanner sitting on my lap while I read it even though the port is down by my feet. What's really cool is that it doesn't just tell you the codes - it also lets you clear them. So after I got the oxygen sensor replaced (which I ended up doing myself for like $40 instead of paying a mechanic), I was able to use the scanner to turn off the check engine light. At some shops they charge you just to turn the light off, which is ridiculous when you can do it yourself in 2 seconds with this tool. The scanner also shows live data which is honestly pretty fascinating even if you're not a car person. You can see your RPM, engine temperature, fuel system status, all kinds of stuff updating in real-time. I've used this feature to check if my car is running okay - like making sure the temperature isn't getting too high on long drives, or seeing how my fuel efficiency changes based on how I'm driving. I've used it on three different cars now - my Honda, my girlfriend's Toyota, and my dad's Ford truck. It worked perfectly on all of them. It's supposed to work on pretty much any car made after 1996 that has an OBD2 port, which is basically every car on the road. Super universal which is nice. My dad was so impressed with it that he bought one for himself. He's always been the type to take his truck to the dealer for everything, but now he checks codes himself first to see if it's something simple before making an appointment. He said it's already paid for itself because he avoided an unnecessary trip to the dealer when his check engine light came on for something minor. The build quality feels solid too. It's not some flimsy plastic thing that feels like it'll break if you drop it. The buttons are responsive and the screen is bright enough to read easily even in daylight. The cable that connects to the car is thick and durable, not like those cheap cables that fray after a few uses. One feature I really appreciate is the definition library. If you get a code you don't understand, it has a built-in database that explains what each code means in plain English. You don't have to immediately run to Google, though I usually do anyway just to get more details about potential fixes. But having that quick reference right on the device is super helpful. It's also been useful for buying used cars. When I was helping my friend shop for a car, we brought this scanner to test drives. Even if the check engine light isn't on, you can use the scanner to see if there are any stored codes or issues that the seller might be hiding. It gives you way more information before you commit to buying. The manual that comes with it is actually pretty detailed. It explains all the functions and has a troubleshooting section. I'm usually the type to throw manuals away but I kept this one in my glove box just in case I need to reference something. For the price, this is an absolute no-brainer if you own a car. Even if you only use it once, it'll probably save you more money than it cost. I've used mine probably 5 times now for various things and it's saved me hundreds of dollars in diagnostic fees alone. The peace of mind of being able to check what's wrong with your car immediately instead of worrying about it until you can get to a shop is worth it by itself. My only regret is not buying this sooner. I've wasted so much money over the years on diagnostic fees for things that turned out to be minor issues. Now I can at least know what I'm dealing with before I take my car anywhere, which gives me way more leverage when talking to mechanics too. They can't try to upsell me on stuff when I already know exactly what the problem is. If you're tired of being in the dark about your car's issues and don't want to keep paying mechanics just to plug in a reader and tell you a code, get one of these. It's simple enough for anyone to use and it'll pay for itself the first time you use it.
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Reviewed in the United States on January 31, 2026 by S
Works really well and easy to use
Reviewed in the United States on August 21, 2026 by Daniel Manzo
My son has the same unit that I purchased, and I’ve borrowed his so often that I ordered one for myself. But before I did, I watched a YouTube channel called Project Farm. If you’re not familiar with him, he buys different items and compares them. He doesn’t take advertisements or free items; he pays for everything he tests and purchases them from retail sites just like you and me. According to his tests, the Foxwell NT301 has more options and capabilities than all the others he tested, and at a better price. The Foxwell NT301 works on all vehicles and can be updated every year for the latest model, so it will work on any car you have now and in the future. The screen is large, color, and easy to see; you can clear codes, read codes, check oxygen sensors, and see live tests as you drive. It’s an all-around great unit at a fantastic price that saves you from paying big money at your local dealership.
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Reviewed in the United States on March 21, 2026 by Sandy lloyd
Hailing from the shade tree mechanic era of points & plugs ignition and the carburetor accelerator pump, most of what goes on that fills the NT301 data stream is way above my pay grade. While the likes of EGR, O2 and catalyst are not beyond my understanding, the value 12.226 associated with a VPWR(V) certainly is. Being the consummate motor head, the dreaded "service engine soon" lit up for the first time from behind its mask on my dashboard finally gave me the impetus to purchase a code reader. Upon some goodly research, and a screaming hot Amazon deal (a few bucks more than the NT201), I settled on the NT301 and I'm not disappointed. I had two reasons for the purchase: 1) To read the code(s) and have some knowledge in advance of a mandatory visit to a repair shop as that "service engine soon" (or "check engine") light is grounds for instant rejection for my county's annual inspection, even if the good ol' tailpipe sniffing and other "hands on" checks would pass the Federal mandates. As well, it might reveal a serious issue that shouldn't be ignored. 2) To satisfy that ubiquitous question: how can one turn that light off if one wanted to? Searching teh googuhl for either "check engine" or "service engine soon" returns gazillions of hits with bazillions for ODB scanners. Makers, sellers, yoot oobs, reviews, best of... oh my. Not to mention, "over 1000 results" here on the 'zon. I opened NT301_OBDII_V1.00.pdf (the equivalent of the printed manual) in Tracker Software's PDF-XChange Viewer and used its powerful search engine to help out. The words "check engine" or "service engine soon" do not appear in the manual. Instead, one finds section 4.2, Erase codes, for the two choices - an "Erase hot key" and an Erase Codes item in the diagnostic menu. The reference to the hot key appears no where else. The down key has a big old ERASE printed on it. Section 2.1 refers to that as a "Quick access to the Clear Codes function before going to diagnostic menu..." And that's it. Clear = Erase?? Hot key = Quick access?? Fortunately, using the down/ERASE key (you really, really need down) didn't seem to erase or clear anything. My "service engine soon" light remained shining bright as my county and the Federal bureaucrats and repair shops far and wide would have it. I'm OK with that, but in that respect, an obscure "Erase hot key" is dangerous if that shuts off the light. Yet, the question remains, does NT301 anything extinguish the light? Another documentation shortcoming is illustrated in figure 4-30. Although the green check mark and the no symbol can be presumed, my result had two white-X-on-red results with no explanation on what that means. Considering the Federal legal implications of the environmental technology presented by the the I/M Readiness Status, the documentation focuses only on the the three simple LEDs while fully ignoring the really neat Diagnostic Menu Screen. All that said, even at the regular price, the NT301 seems to deliver a great bang for the buck. Further, I'm motivated to hit the books, uh, internet and study up on some of this OBD stuff. Kudos for the 08/01/18 firmware (v4.24) burn date on an 08/15 purchase. A pleasant surprise. But I've got to ding two stars for omitting The Obvious from the manual. Some other reviewers here are less than satisfied with the manual as well. Admittedly, the manual should not be held to the standard of a concise tutorial. SIDEBAR: The problem was repaired; the car passed emissions testing. I still have the two white-X-on-red symbols in the I/M Readiness Status Diagnostic Menu Screen. So, what the heck...
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Reviewed in the United States on August 21, 2018 by NoName