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What is the difference between OBD 1 and OBD 2?

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What is the difference between OBD 1 and OBD 2?

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In like manner, OBD2 is an advanced technology improved from OBD1. Thus, OBD2 provide better and more standardized vehicle protocols and system checks data. OBD1 needs corded connection while OBD2 can be connected hands freely via Bluetooth or wifi.

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