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1. #HOW TO USE A OBD2 READER PORTABLE#
2. #HOW TO USE A OBD2 READER BLUETOOTH#
3. #HOW TO USE A OBD2 READER DOWNLOAD#

Some devices are universal and can be used with different apps.

#HOW TO USE A OBD2 READER DOWNLOAD#

To start using it, you’ll need to download an application on your smartphone.

#HOW TO USE A OBD2 READER BLUETOOTH#

The device will usually feature Bluetooth technology.

#HOW TO USE A OBD2 READER PORTABLE#

Many people prefer the portable options as they come with wireless technology and allows you to store reports on a connected device. In this particular case, the fuel trim level will be much higher than what it should be. Vacuum leaks are also able to cause alterations to the readings of both STFT and LTFT. Readings that are above or below these indicated ranges usually mean problems with the fuel delivery system in your vehicle, or the engine itself. On the other hand, you should see a more stable figure when looking at the LTFT reading. While keeping an eye on this live data, the STFT reading should be consistently shifting between positive and negative percentages. You should look at the LTFT reading more strictly – the range shouldn’t go below -5% or above 5%. The ideal STFT reading should be between 10% and -10%. On the other hand, when the reading is below 0%, then fuel is removed and more air is added. When the reading is above 0%, it means more fuel is added. This particular reading tells you whether the ECM is currently adding more fuel or air to the mixture. When you use the live data provided by the scan tools, you can diagnose a problem early – which can help you prevent complications. These scan tools usually come with additional capabilities to ensure you can pick up even small issues with your vehicle. Of course, this is a limited list of live data that you can obtain. Some of the live data that an OBD2 scanner may provide you with include: Additionally, they can also be used as a way of determining the overall performance of the vehicle. These tools can be used when the check engine light is on. This means the scan tool will only have the purpose of providing you with error codes submitted by the engine.Ī scan tool that gives you access to live data, however, can usually give you more details to work with.

Some of these devices are only made to be used when the check engine light is on. The specific data that can be read depends on the OBD2 scanner you decide to use. Each of the sensors reports back to the computer system that is part of the On-Board Diagnostics technology used in the car.ĭue to the distribution of the sensors throughout the vehicle’s structure, it is possible to obtain different types of data.

These sensors form a complete network throughout the car. In addition to the port and the computer, the system also consists of many sensors. The On-Board Diagnostic system actually expands to many areas of your vehicle. The port connects to a computer system that is built into the car. The specific location of the OBD II port differs from one car to the next, but the design of the port itself remains similar. This will give you a better idea on what to expect, as well as to establish the accuracy.Īn OBD2 scanner connects to a port located on your car’s dashboard. Before we look at the live data presented by a scan tool that plugs into the OBD II port, we should first consider how the technology works.