By make and model
BlueDriver plugs into a car's OBD-II port, reading diagnostic data from the engine and sending over Bluetooth to your phone.
Read the BlueDriver review.
The QR code helps you find the associated BlueDriver app.
The OBD-II port was mandated for cars from model year 1996 and later.
The finger grip at the top of the BlueDriver OBD-II scanner makes it easy to pull out of a port.
At $99.95, BlueDriver offers a lot of capabilities and help for the DIY auto mechanic.
The BlueDriver app opens with a menu screen, using icons for its various functions.
The Live data stream lets you see what's happening in your engine while it is running.
BlueDriver even shows OBD-II Mode 6 diagnostics, which tend to be unique to different makes but can warn of potential engine problems.
The Smog Check feature does not guarantee your car will pass a smog test, but will likely tell you if it won't, and possibly point you to why it will fail.
BlueDriver stores any error codes thrown by the engine.
BlueDriver shows how long, and for how many miles, a check-engine light has been on, if the OBD-II in that car supports it.
Lemur Monitors offers five repair reports for free, then more at a rate of five for 99 cents, an excellent value considering each report shows potential causes for error codes along with fixes.