Decoding sequentially received vector signaling codewords to obtain sequential sets of data bits, wherein elements of each vector signaling codeword are received in parallel over a plurality of wires, generating an incremental update of a plurality of error correction syndrome values based on each sequential set of data bits according to a check matrix, and upon decoding of a final vector signaling codeword, performing a final incremental update of the plurality of error correction syndrome values and responsively modifying data bits within the sequential sets of data bits by selecting a set of data bits from the sequential sets of data bits according to a symbol position index determined from the plurality of error correction syndrome values, the selected set of data bits altered according to a bit error mask determined from a first error correction syndrome value of the plurality of error correction syndrome values.