OBDmax

You walk out to your car on a cold morning, turn the key, and the dashboard lights up with a warning you don’t understand. Instead of guessing or rushing to a mechanic, you plug in a small device, open an app, and see the exact fault code, live sensor data, and a clear explanation of what’s wrong. OBDmax turns your smartphone into a professional-grade vehicle diagnostics tool, giving you the power to monitor, analyze, and maintain your car with real-time data from the engine control unit.

Core Diagnostic Tools

OBDmax connects directly to your vehicle’s OBD-II port via a Bluetooth or Wi-Fi adapter, then reads and interprets hundreds of diagnostic trouble codes (DTCs) from the engine, transmission, ABS, airbags, and emissions systems. The app displays live data streams including coolant temperature, RPM, vehicle speed, fuel trim, intake air temperature, oxygen sensor voltage, and throttle position. You can view this data as numerical gauges, bar graphs, or historical line charts, with customizable dashboard layouts that let you prioritize the parameters most relevant to your driving style or repair needs.

Advanced Analysis & Monitoring

Beyond basic code reading, OBDmax offers a comprehensive suite of analytical tools. The Trip Log automatically records every journey, mapping your route with GPS coordinates while logging average fuel consumption, distance driven, maximum speed, and engine load. The Performance Monitor tracks 0-60 mph times, quarter-mile runs, and horsepower estimates using acceleration data from the vehicle’s sensors. For emissions testing preparation, the Readiness Monitor checks all OBD-II monitors (catalyst, oxygen sensor, EGR, evaporative system) and shows if your car will pass inspection. The Dashboard Recording feature captures a snapshot of all live data at the moment a fault code triggers, helping you diagnose intermittent issues that disappear when you reach a shop.

User Interface & Customization

The interface is designed for both casual drivers and experienced mechanics. You can create custom dashboards with up to 12 gauges, choosing from analog, digital, or hybrid display styles. The Fault Code Library includes plain-language descriptions, possible causes, and suggested repair steps for over 5,000 codes. Push notifications alert you instantly when a new code appears, when a sensor reading exceeds a threshold you set, or when your scheduled maintenance interval is due. The Data Logging feature lets you record sessions to CSV files for later analysis on your computer, or share them with a mechanic via email.

• Live engine data with customizable gauges
• Full OBD-II code reading and clearing
• GPS trip logging with fuel consumption
• Performance testing and 0-60 timer

Download mobile app now

Take control of your car’s health and performance. Connect your OBD-II adapter, open OBDmax, and start reading real-time data, clearing check engine lights, and tracking every trip. Stop overpaying for diagnostics — your phone is already a professional scan tool.

Heads up: you’ll need a compatible Bluetooth or Wi-Fi OBD-II adapter (sold separately) to connect to your vehicle. Some advanced features, like performance testing and data export, require an in-app purchase.