The present disclosure provides for improved DAC circuits and methods. The decoding method comprises receiving in parallel at least one subset of Q bits belonging to the set of N1 bits sent to the buffer, detecting errors with the help of the second decoding algorithm, based on the bits decoded using the first decoding algorithm, and correcting the bits stored in the buffer as a function of possible errors detected. The hybrid vehicle continues generation of the fuel-cut request until the learning of the idle operation control learned value is completed. The susceptor is rotated to revolve the substrate through the first and second source gas areas.