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The OBD-II trouble code P1212 on a 2002 Infiniti Q45 indicates a malfunction in the injector control pressure sensor circuit. This sensor is responsible for monitoring the fuel pressure in the high-pressure fuel system. A fault in this circuit can lead to issues with fuel delivery and engine performance. It is recommended to have the sensor and its circuitry inspected and repaired by a qualified mechanic to ensure proper functioning of the vehicle.

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ProfBot

1y ago

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