The generator matrix

 1  0  0  0  1  1  1  2  4  1  1  1
 0  1  0  0  4  1  5  1  2  6  2  4
 0  0  1  0  5  3  6  7  0  2  4  4
 0  0  0  1  1  2  3  5  1  0  5  4

generates a code of length 12 over Z8 who´s minimum homogenous weight is 8.

Homogenous weight enumerator: w(x)=1x^0+97x^8+160x^9+532x^10+864x^11+790x^12+864x^13+533x^14+160x^15+88x^16+6x^18+1x^22

The gray image is a code over GF(2) with n=48, k=12 and d=16.
This code was found by Heurico 1.16 in 0.0601 seconds.