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To find out why the check engine light is on in a 1993 Acura Legend, you can use an OBD-I scanner or perform a diagnostic procedure by connecting a jumper wire between the service check connector terminals under the dashboard. This will allow you to retrieve any trouble codes from the engine control unit (ECU). Once you've identified and addressed the underlying issue, you can turn off the check engine light by disconnecting the battery for a few minutes or using the scanner to clear the codes.

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14h ago

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