When you buy a used car, it’s important to do your research. A VIN lookup can tell you a lot about a car’s history, including whether it’s been in any accidents or if it has any outstanding recalls. An OBD2 scanner can also be very helpful in this process. By plugging into the car’s onboard diagnostic port, an OBD2 scanner can provide you with a wealth of information about the car. This includes everything from engine trouble codes to fuel economy. In short, an OBD2 scanner can be a valuable tool for anyone looking to buy a used car.