The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  2  0 2X+2  0 2X 2X+2 2X+2  2 2X 2X  2 2X  0
 0  0  2 2X+2 2X 2X+2  0  2  2 2X  2 2X  0  0

generates a code of length 14 over Z4[X]/(X^2+2X+2) who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+15x^12+224x^14+15x^16+1x^28

The gray image is a code over GF(2) with n=112, k=8 and d=48.
This code was found by Heurico 1.16 in 1.05e-007 seconds.