Have you upgraded your car’s tires to a larger size and noticed your speedometer is no longer accurate? This is a common issue, and it not only affects your speed readings but also your vehicle’s mileage recording. Fortunately, there’s a cost-effective and user-friendly solution using an Android Mileage Correction App Obd2 and a Bluetooth OBD2 scanner. This guide will walk you through how to easily correct your car’s mileage display using readily available tools.
Correcting your mileage after changing tire sizes is important for several reasons. Firstly, accurate speed readings are crucial for safe driving and avoiding speeding tickets. Secondly, an incorrect odometer reading can affect your car’s resale value and maintenance schedules. While some might see it as a way to reduce mileage for warranty purposes, the primary goal here is accuracy and transparency.
To achieve mileage correction, you’ll need two key components: a Bluetooth OBD2 scanner and an Android app that supports mileage adjustment. A popular and budget-friendly option for the OBD2 scanner is the Veepeak OBDCheck BLE Bluetooth OBD II Scanner. This compact device plugs into your car’s OBD2 port and communicates wirelessly with your Android phone.
For the Android app, OBD Fusion stands out as a robust and highly-rated choice. This app is compatible with the Veepeak scanner and offers a wide range of functionalities, including real-time parameter monitoring and, crucially, speedometer correction. While the app itself is not directly performing “mileage correction” in the sense of altering the stored odometer value, it allows you to compensate for tire size differences, ensuring accurate speed and distance calculations within the app itself, which indirectly impacts displayed mileage during your current drive.
The Veepeak OBDCheck BLE scanner is readily available online at a reasonable price, making it an accessible tool for most car owners. Its Bluetooth connectivity ensures a stable and easy connection with your Android device. Coupled with the OBD Fusion app, you gain access to a powerful diagnostic tool and customization platform.
The OBD Fusion app provides a user-friendly interface to adjust your vehicle’s speed scale factor. This setting compensates for the change in tire circumference, effectively correcting the speed and distance readings displayed within the app. To adjust this, navigate to the settings menu, then to vehicle editor, and locate the “vehicle speed scale factor” table. By modifying this factor, you can align the app’s speed reading with your actual GPS speed.
OBD Fusion App Interface: Android mileage correction app obd2 settings showing vehicle speed scale factor for tire size adjustment.
For instance, if you’ve switched to 35-inch tires (285/75R18), starting with a scale factor of 1.15 or 1.16 is a good starting point. You’ll need to fine-tune this value by comparing the app’s speed reading with a GPS speedometer to achieve optimal accuracy. Remember that this correction is applied within the app and does not alter the vehicle’s physical speedometer or odometer. However, for monitoring purposes and ensuring accurate speed readings during your drive, this solution is highly effective.
Beyond mileage correction, this setup offers additional benefits. You can use your Android phone as a digital gauge cluster, displaying real-time data such as boost pressure, coolant temperature, oil temperature, battery voltage, and torque output. This provides valuable insights into your vehicle’s performance and health. The OBD Fusion app is highly customizable, allowing you to tailor the display to your specific needs and preferences.
While there are more integrated and expensive options like the Banks iDash, for users seeking a budget-friendly and functional solution for speedometer correction and vehicle monitoring, the combination of a Veepeak OBD2 scanner and an Android mileage correction app like OBD Fusion is hard to beat. It’s a versatile tool that can be used across different vehicles and offers a range of diagnostic capabilities in addition to mileage-related adjustments, making it a worthwhile investment for any car enthusiast or DIY mechanic.
