Can I leave an OBD2 adapter plugged in all the time?

Adapters with sleep mode (OBDLink MX+) are safe to leave plugged in. Generic adapters without sleep mode can slowly drain your car battery over days. Unplug them after use to be safe.

What's the difference between OBD2 and OBD1?

OBD2 is the universal standard for 1996+ vehicles. OBD1 covers older cars with manufacturer-specific protocols. Bluetooth OBD2 adapters only work with OBD2 vehicles (1996 and newer).

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