I bought this obd adapter and use with an iPhone app called car scanner. It works really well and syncs immediately at startup/ignition. The app can read trouble codes, clear trouble codes and you can setup virtual gauges as well. For some reason a lot of the free apps don’t have certain gauges such as oil pressure and require you to purchase add on vehicle or engine specific packs in order to view the gauges and or view/clear trouble codes. This app with my LSA works flawlessly and the only thing I had to pay for was the adapter from Amazon.
Veepeak OBDCheck BLE OBD2 Bluetooth Scanner Auto OBD II Diagnostic Scan Tool for iOS & Android, Bluetooth 4.0 Car Check Engine Light Code Reader Supports Torque, OBD Fusion app
https://www.amazon.com/dp/B073XKQQQW...ing=UTF8&psc=1