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OBD Fusion

Clear check engine lights, track fuel economy, and build custom real-time dashboards. Empower your DIY maintenance and stop overpaying at the mechanic.

Key Figures

Downloads

531K+

User Rating

4.7/5

Total Ratings

19K+

Publisher

OCTECH LLC

Take Full Control of Your Vehicle

Turn your iPhone into a professional-grade diagnostic tool and gain deep insights into your car's performance, health, and efficiency.

Stop Guessing, Start Fixing

Instantly read and clear check engine lights and diagnostic trouble codes to save hundreds on unnecessary mechanic fees.

Pro-Grade Virtual Dashboards

Visualize your engine’s health with fully customizable, real-time gauges for boost pressure, transmission temps, and fuel economy.

FAQ

Frequently Asked Questions

Everything you need to know about OBD Fusion

How does OBD Fusion clear the check engine light?

Yes, OBD Fusion allows users to read and clear emissions-related trouble codes (fault codes), which turns off the Check Engine Light (MIL). This feature helps identify and resolve vehicle issues.

Which adapters are compatible with the OBD Fusion app?

OBD Fusion requires a Wi-Fi ELM327 compatible adapter or specific Bluetooth LE adapters like Veepeak BLE, Carista BLE, OBDLink MX+/CX, Tonwon BLE, LELink BLE, Viecar BLE, Lonauto, Vgate iCar Bluetooth 4.0, or BAST BLE, and Kiwi 3/4.

Can users create custom dashboards in OBD Fusion?

Yes, OBD Fusion features a real-time dashboard display with fully customizable gauges. Users can create personalized dashboards to view desired vehicle parameters.

Does OBD Fusion support CarPlay integration?

Yes, OBD Fusion supports viewing vital driving information on CarPlay. However, real-time gauges are not supported, so dashboards do not display on CarPlay.

What types of vehicles are compatible with OBD Fusion?

OBD Fusion supports all OBD2 and EOBD vehicles sold worldwide. It also connects to some JOBD vehicles and can support Electric Vehicles (EVs) after contacting the developer for specific compatibility.

Can OBD Fusion read enhanced diagnostic trouble codes like ABS or SRS?

Yes, with optional enhanced diagnostic add-ons available via in-app purchases, OBD Fusion can read and clear enhanced trouble codes from other modules like ABS and SRS. It also reads transmission temperature.

How does OBD Fusion track fuel economy?

OBD Fusion calculates fuel economy, displaying it in MPG (US and UK), l/100km, or km/l. This feature helps users monitor and improve their vehicle's fuel efficiency.

Does OBD Fusion allow data logging and playback?

Yes, OBD Fusion supports real-time data logging and playback. Users can also log data to a CSV file for further analysis and utilize multiple trip meters.

How does OBD Fusion assist with emissions readiness checks?

OBD Fusion provides emissions readiness checks for each US state. It displays information like Oxygen Sensor Results (Mode 05), On-board Monitoring Tests (Mode 06), and In-performance Tracking Counters (Mode 09).

Can OBD Fusion measure vehicle performance times?

Yes, OBD Fusion performs calculations for performance times, including 1/4 mile and 0-60 mph track times. This allows users to track their vehicle's acceleration metrics.

Can OBD Fusion display a vehicle's VIN and other identification?

Yes, OBD Fusion displays vehicle information including the VIN (Vehicle Identification Number) and calibration ID. This provides essential identification data for the connected vehicle.

Is OBD Fusion available in multiple languages?

Yes, OBD Fusion is available in multiple languages. These include English, Spanish, French, Italian, German, Czech, Greek, Chinese, and Portuguese.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

OBD Fusion - OBD Fusion mobile app showing the main menu icons and a custom vehicle dashboard gauge. — OBD Fusion mobile app showing the main menu icons and a custom vehicle dashboard gauge.

OBD Fusion - OBD Fusion app displaying custom car dashboards with real time diagnostic gauges — OBD Fusion app displaying custom car dashboards with real time diagnostic gauges

OBD Fusion - OBD Fusion app displaying vital vehicle data on a CarPlay screen — OBD Fusion app displaying vital vehicle data on a CarPlay screen

OBD Fusion - Smartphone screen displaying diagnostic trouble codes and engine fault details in the OBD Fusion app — Smartphone screen displaying diagnostic trouble codes and engine fault details in the OBD Fusion app

OBD Fusion - OBD Fusion app diagnostic report screen showing vehicle health checks like trouble codes and emissions readiness — OBD Fusion app diagnostic report screen showing vehicle health checks like trouble codes and emissions readiness

OBD Fusion - Interface of OBD Fusion app displaying real time graphs for vehicle speed engine rpm and manifold pressure — Interface of OBD Fusion app displaying real time graphs for vehicle speed engine rpm and manifold pressure

OBD Fusion - OBD Fusion app screens showing emissions readiness status and vehicle diagnostic freeze frame data on iPhone — OBD Fusion app screens showing emissions readiness status and vehicle diagnostic freeze frame data on iPhone

OBD Fusion - OBD Fusion app interface showing performance time measurements and a digital speedometer gauge — OBD Fusion app interface showing performance time measurements and a digital speedometer gauge

OBD Fusion - OBD Fusion app displaying live vehicle sensor data including speed, RPM, and engine temperature on an iPhone. — OBD Fusion app displaying live vehicle sensor data including speed, RPM, and engine temperature on an iPhone.

OBD Fusion - OBD Fusion app displaying vehicle identification number, calibration data, and engine tracking counters. — OBD Fusion app displaying vehicle identification number, calibration data, and engine tracking counters.

Description

OBD Fusion is an app for your car that allows you to read OBD2 vehicle data directly from your iPhone or iPad. You can clear your check engine light, create custom dashboards, read diagnostic trouble codes, estimate fuel economy, and much more! Is your check engine light on? Do you want to monitor fuel economy and usage in your vehicle? Do you want cool looking virtual dashboards on your iPhone or iPad? If so, then OBD Fusion is the app for you! OBD Fusion is used by professional mechanics, do-it-yourself mechanics, and vehicle owners who want to monitor their vehicle and daily driving habits. Drive smarter, improve your fuel economy, and keep your engine healthy! IMPORTANT NOTE: You must have a Wi-Fi ELM327 compatible adapter or compatible Bluetooth LE adapter such as Veepeak BLE/BLE+ 4.0 adapter, Carista BLE adapter, OBDLink MX+, OBDLink CX, Tonwon BLE adapter, LELink BLE adapter, Viecar BLE adapter, Lonauto adapter, Vgate iCar Bluetooth 4.0, BAST BLE adapter, Kiwi 3/4 to use this app. OBD Fusion is not compatible with generic ELM Bluetooth scan tools. Checkout additional adapters here: https://www.obdsoftware.net/software/obdfusion OBD Fusion supports all OBD2 and EOBD vehicles sold worldwide. If you're not sure whether your vehicle is OBD2 or EOBD compliant, see this page for more information: https://www.obdsoftware.net/knowledgebase/obd2compliant. OBD Fusion can also connect to some JOBD vehicles that don’t support standard OBD2 protocols. Electric vehicles (EVs) are not required to have OBD2 diagnostics since they are emissions exempt. If you are interested in using OBD Fusion on an EV, contact us first to inquire about support. OBD Fusion has a ton of features including: - Read and clear emissions-related trouble codes (fault codes) and your Check Engine Light (MIL)  - View vital driving information on your CarPlay screen. Note that real-time gauges are not supported by CarPlay, so you can't view your OBD Fusion pages such as dashboards on CarPlay. - With optional enhanced diagnostic add-ons, you can read and clear enhanced trouble codes on other modules such as ABS, SRS, etc. and read transmission temperature. An enhanced diagnostic add-on is required for this functionality. - Real-time dashboard display with fully customizable gauges. Create your own dashboards with the gauges that you want to see. - Performance calculations for 1/4 mile and 0-60 mph track times - Fuel economy MPG (US and UK), l/100km or km/l calculation - Full diagnostic report that can be stored and shared - Real-time graphing of multiple signals - Real-time data logging and playback - Multiple trip meters  - Log data to CSV file - Create custom enhanced PIDs - Includes some built-in enhanced PIDs for GM vehicles - Display Boost pressure in real-time - Display Engine Power and Torque - Display calculated Air-to-fuel ratio - Display battery voltage  - Read freeze frame data  - Fully customizable units including English, Imperial, and Metric units  - Over 250 supported PIDs  - Display vehicle information including VIN and calibration ID  - Emissions readiness for each US state. Find out if your car will pass emissions inspection. - Oxygen Sensor Results (Mode 05)  - On-board Monitoring Tests (Mode 06)  - In-performance Tracking Counters (Mode 09)  - GPS tracking - plot vehicle parameters on a map - Integrated iCloud and Dropbox functionality - Available in English, Spanish, French, Italian, German, Czech, Greek, Chinese, and Portuguese - Manufacturer specific Enhanced Diagnostics are available for certain vehicles through In-App purchases. ** Continued use of GPS running in the background can dramatically decrease battery life. OBD Fusion is brought to you by OCTech, LLC, the makers of TouchScan and OBDwiz. OBD Fusion is a trademark of OCTech, LLC registered in the U.S.